Quantum measurement method and device, electronic equipment and storage medium

Abstract

The invention discloses a quantum measurement method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the steady-state processing of an initial entangled photon pair based on a preset steady-state strategy, and obtaining a target entangled photon pair; detecting the target entangled photon pair to obtain target photon data; and executing a data analysis operation on the target photon data to obtain a target quantum key. The technical problem of low sensitivity and accuracy of optical measurement caused by difficulty in generation and maintenance of the entanglement state in the quantum measurement technology in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a quantum measurement method, device, electronic device and storage medium. Background Art

[0002] In the field of quantum optical measurement, existing technologies mainly include traditional optical measurement technology and primary quantum measurement technology. Traditional optical measurement technology relies on classical light sources and uses equipment to perform measurements. Its accuracy is usually limited by the coherence of the light source and the stability of the light intensity. Primary quantum measurement technology begins to use single-photon sources and non-entangled quantum states to improve the accuracy and sensitivity of measurements. However, the above methods are limited by the performance of the detector and environmental noise. At the same time, existing entangled photon applications attempt to improve measurement accuracy through quantum interference measurement and quantum imaging, showing the potential to surpass traditional methods, but the generation and maintenance of its entangled state is extremely difficult, which reduces the sensitivity and accuracy of optical measurements.

[0003] Currently, no corresponding solution has been proposed for the above problems. Summary of the invention

[0004] The embodiments of the present invention provide a quantum measurement method, device, electronic device and storage medium to at least solve the technical problem in the prior art that the sensitivity and accuracy of optical measurement are low due to the difficulty in generating and maintaining an entangled state in quantum measurement technology.

[0005] According to one embodiment of the present invention, a quantum measurement method is provided, including: performing steady-state processing on an initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair; detecting the target entangled photon pair to obtain target photon data; performing data analysis operations on the target photon data to obtain a target quantum key.

[0006] Optionally, processing the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair includes: acquiring an initial entangled photon pair according to an entanglement type; and performing steady-state processing on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair.

[0007] Optionally, performing data processing operations on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair includes: acquiring the crystal temperature and the polarization angle of the light source; performing a perturbation correction operation on the initial entangled photons according to the crystal temperature and the polarization angle of the light source to obtain the target entangled photon pair.

[0008] Optionally, the target photon data includes target photon sensitivity and target photon response time, and detecting the target entangled photon pair to obtain the target photon data includes: acquiring target dynamic data of the target entangled photon pair; detecting the target entangled photon pair according to the target dynamic data to obtain the target photon sensitivity and target photon response time.

[0009] Optionally, the data analysis operation includes at least one of: error rate evaluation, quantum state reconstruction, and entanglement verification.

[0010] Optionally, the quantum measurement method further includes: in response to acquiring the target quantum key, performing a security check operation on the target quantum key.

[0011] According to one embodiment of the present invention, a quantum measurement device is also provided, including: a steady-state processing module, used to perform steady-state processing on an initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair; a detection module, used to detect the target entangled photon pair to obtain target photon data; and a data analysis module, used to perform data analysis operations on the target photon data to obtain a target quantum key.

[0012] Optionally, the quantum measurement device also includes an acquisition module for acquiring an initial entangled photon pair according to the entanglement type; the steady-state processing module is also used to perform steady-state processing on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair.

[0013] Optionally, the acquisition module is also used to acquire the crystal temperature and the polarization angle of the light source; perform a perturbation correction operation on the initial entangled photons according to the crystal temperature and the polarization angle of the light source to obtain a target entangled photon pair.

[0014] Optionally, the acquisition module is also used to acquire target dynamic data of the target entangled photon pair; the detection module is also used to detect the target entangled photon pair according to the target dynamic data to obtain the target photon sensitivity and the target photon response time.

[0015] Optionally, the data analysis operation includes at least one of: error rate evaluation, quantum state reconstruction, and entanglement verification.

[0016] Optionally, the quantum measurement device further includes a security check module for performing a security check operation on the target quantum key in response to acquiring the target quantum key.

[0017] According to one embodiment of the present invention, there is also provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the above-mentioned quantum measurement method is executed when the program is running.

[0018] According to one embodiment of the present invention, a computer-readable storage medium is also provided, including: the computer-readable storage medium includes a stored executable program, wherein when the executable program is running, the device where the storage medium is located is controlled to execute the above-mentioned quantum measurement method.

[0019] According to one embodiment of the present invention, a computer program product is also provided, including: a computer program, which implements the above-mentioned quantum measurement method when executed by a processor.

[0020] In an embodiment of the present invention, a method is adopted in which a target entangled photon pair is obtained by performing steady-state processing on an initial entangled photon pair based on a preset steady-state strategy; the target entangled photon pair is detected to obtain target photon data; and a data analysis operation is performed on the target photon data to obtain a target quantum key, thereby achieving the purpose of generating stable and efficient entangled photons and realizing the technical effect of improving the sensitivity and accuracy of optical measurement, thereby solving the technical problem in the prior art that the sensitivity and accuracy of optical measurement are low due to the difficulty in generating and maintaining the entangled state in quantum measurement technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 This is a hardware structure block diagram of a computer terminal according to a quantum measurement method according to one embodiment of the present invention;

[0023] Figure 2 is a flow chart of a quantum measurement method according to one embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of a quantum measurement method according to one embodiment of the present invention;

[0025] Figure 4 is a schematic diagram of another quantum measurement method according to one embodiment of the present invention;

[0026] Figure 5 It is a structural block diagram of a quantum measurement device according to one embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] According to an embodiment of the present invention, an embodiment of a quantum measurement method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system containing at least one set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0030] Among the related technologies, high-sensitivity detection technology based on entangled photons uses the principle of quantum entanglement to improve the sensitivity and accuracy of optical measurements through the unique quantum state formed between particles. Quantum entanglement enables photons to exhibit strong correlations that exceed the limitations of classical physics, allowing measurements to reach the Heisenberg limit and breaking through the limitations of traditional optical measurements. This technology is particularly useful in fields such as astronomical observations, biological imaging, and precision measurements. It can significantly improve the resolution of telescopes, enhance the clarity and depth of biomedical imaging, and improve the measurement accuracy of quantum sensing and optical clocks. Despite many theoretical advantages, the practical application of entangled photons still faces challenges such as the creation of stable entangled states and environmental interference. There are also technical and engineering difficulties in transferring them from laboratory environments to real-world applications.

[0031] Existing technologies in the field of quantum optical measurement mainly include traditional optical measurement technology and preliminary quantum measurement technology. Traditional technology relies on classical light sources, such as lasers, and uses equipment such as interferometers and spectrometers to perform measurements. Its accuracy is usually limited by the coherence of the light source and the stability of the light intensity. Primary quantum measurement technology has begun to explore the use of single-photon sources and non-entangled quantum states to improve the accuracy and sensitivity of measurements. Although these methods improve detection efficiency, they are still limited by the performance of the detector and environmental noise. At the same time, existing entangled photon applications attempt to improve measurement accuracy through quantum interferometry and quantum imaging, demonstrating the potential to surpass traditional methods, but the difficulty of generating and maintaining entangled states and the high sensitivity to environmental disturbances limit their practical applications. These technologies require complex experimental equipment and high maintenance costs, and high-sensitivity detection technology based on entangled photons provides a method that can theoretically break through these limitations, which is expected to greatly promote scientific and technological progress.

[0032] Existing quantum optical measurement technology has made significant progress in improving accuracy and sensitivity, but there are still a series of technical problems, mainly including: 1. Light source coherence and stability limitations: In traditional optical measurements, the accuracy of measurements is often limited by the coherence and stability of the light source. This limits the accuracy and reliability of the measurement results. 2. Detector efficiency and noise issues: Even when using single-photon detection technology, the efficiency of the detector and its inherent noise are still important factors affecting the measurement sensitivity. These noises may come from the device itself or the external environment, affecting the quality of the measurement data. 3. Difficulty in generating and maintaining entangled states: Although the use of entangled photons can theoretically improve the accuracy of measurements, it is extremely difficult to generate and maintain stable entangled states in practical applications, and it is very sensitive to the environment. 4. High cost and complex experimental equipment requirements: Existing quantum measurement technology requires complex experimental settings and high equipment costs, which limits its application and popularization in a wider range of fields.

[0033] The following terms are explained here:

[0034] 1. Quantum Key Distribution (QKD): A technology that uses the principles of quantum mechanics (such as quantum entanglement and quantum uncertainty) to achieve secure key distribution. In quantum key distribution, any attempt to eavesdrop will cause an irreversible change in the system state and thus be detected.

[0035] 2. Quantum Entanglement: A phenomenon in quantum mechanics in which two or more particles (such as photons) form a dependency in quantum state, so that the quantum state of one particle instantly affects the state of another particle, no matter how far apart they are.

[0036] 3. Quantum Repeater: A device used to enhance long-distance quantum communication by creating, maintaining and extending the chain of quantum entanglement, thereby overcoming the problem of quantum information attenuation during transmission.

[0037] 4. Quantum Network: A network composed of multiple quantum nodes that uses quantum mechanical properties such as quantum entanglement to achieve secure data transmission and quantum information processing between multiple points.

[0038] 5. Quantum Computing: A form of computing that uses quantum bits (qubits) to process information. Unlike traditional binary-based computing, quantum computing can process a large number of computing paths simultaneously, significantly improving computing speed and efficiency.

[0039] 6. Quantum Teleportation: A quantum information technology that allows the state of a quantum system to be transmitted from one location to another through quantum entanglement and classical communication without involving physical transmission.

[0040] 7. SPDC (Spontaneous Parametric Down-Conversion): A process that occurs in nonlinear optical media, where a high-energy photon is converted into two entangled photons of lower energy. This is a common method for generating entangled photon pairs.

[0041] 8. Dense Wavelength Division Multiplexing (DWDM): A fiber optic communication technology that increases bandwidth by simultaneously transmitting multiple optical signals of different wavelengths in the same optical fiber.

[0042] The quantum measurement method embodiment provided in the embodiment of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Figure 1 FIG. 1 is a block diagram of the hardware structure of a computer terminal according to a quantum measurement method according to one embodiment of the present invention. Figure 1As shown, the computer terminal 10 (or electronic device 10) may include one or more (102a, 102b, ..., 102n are used to illustrate) processors (the processor may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmission module 106 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the I / O interface), a network interface, a power supply and / or a camera. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0043] It should be noted that the one or more processors and / or other data processing circuits described above may generally be referred to herein as "data processing circuits". The data processing circuits may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. In addition, the data processing circuit may be a single independent processing module, or may be incorporated in whole or in part into any of the other components in the computer terminal 10 (or electronic device). As described in the embodiments of the present application, the data processing circuit acts as a processor control (e.g., selection of a variable resistor terminal path connected to an interface).

[0044] The memory 104 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the quantum measurement method in the embodiment of the present application. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory 104, that is, realizing the above-mentioned quantum measurement method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include a memory remotely arranged relative to the processor, and these remote memories may be connected to the computer terminal 10 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0045] The transmission module 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the computer terminal 10. In one example, the transmission module 106 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission module 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0046] The display may be, for example, a touch screen type liquid crystal display (LCD), which may enable a user to interact with a user interface of the computer terminal 10 (or electronic device).

[0047] It should be noted that, in some optional embodiments, the above Figure 1 The computer device (or electronic device) shown may include hardware elements (including circuits), software elements (including computer code stored on a computer-readable medium), or a combination of hardware elements and software elements. It should be noted that Figure 1 This is merely one example of a particular embodiment and is intended to illustrate the types of components that may be present in the above-described computer device (or electronic device).

[0048] Figure 2 is a flow chart of a quantum measurement method according to one embodiment of the present invention, such as Figure 2 As shown, the method comprises the following steps:

[0049] Step S20, performing steady-state processing on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair;

[0050] In step S20, the initial entangled photons are used to characterize the entangled photon pairs with lower energy generated by the optical parametric down conversion (SPDC) process when the light beam passes through the crystal.

[0051] Step S22, detecting the target entangled photon pair to obtain target photon data;

[0052] Specifically, the target entangled photons are transmitted to superconducting nanowire single-photon detectors (SNSPDs) located at the transmitter and receiver. These detectors can detect single-photon events with extremely high efficiency and extremely low error rate, and record the arrival time and state of the photons. Using the time-correlated single-photon counting system (TCSPC), the detection events at the transmitter and receiver can be accurately synchronized, thereby providing the necessary time tags and quantum bit information for key distribution.

[0053] Step S24, performing data analysis operations on the target photon data to obtain the target quantum key.

[0054] Specifically, the detected target photon data is sent to a data processing unit, which uses advanced quantum computing software for data analysis. The software is responsible for identifying the fidelity of the entangled state and generating quantum keys.

[0055] Based on the above steps S20 to S24, a method is adopted in which the initial entangled photon pair is subjected to steady-state processing based on a preset steady-state strategy to obtain the target entangled photon pair; the target entangled photon pair is detected to obtain target photon data, and a data analysis operation is performed on the target photon data to obtain the target quantum key, thereby achieving the purpose of generating stable and efficient entangled photons, and realizing the technical effect of improving the sensitivity and accuracy of optical measurement, thereby solving the technical problem in the prior art that the sensitivity and accuracy of optical measurement are low due to the difficulty in generating and maintaining the entangled state in quantum measurement technology.

[0056] Optionally, in step S20, the initial entangled photon pair is processed based on a preset steady-state strategy to obtain a target entangled photon pair, including:

[0057] Step S201, obtaining an initial entangled photon pair according to the entanglement type;

[0058] Specifically, a specially designed laser is used to emit a modulated high-energy light beam to a nonlinear crystal. The laser is equipped with a dual-wavelength function that allows the simultaneous or alternating emission of two light beams of different wavelengths to dynamically adjust the output according to the type of entanglement (polarization or time entanglement).

[0059] Furthermore, the output of the laser is precisely controlled by a high-precision optical modulation system, which includes polarizers and wavelength filters, and is dynamically adjusted in combination with a machine learning algorithm to maximize the efficiency of entanglement generation. When the light beam passes through the crystal, the high-precision optical modulation system uses the optical parametric down-conversion (SPDC) process to produce lower-energy entangled photon pairs, namely initial entangled photon pairs. These photon pairs form specific quantum entanglement in polarization or time, providing a key measurement basis for subsequent steps.

[0060] Step S202, performing steady-state processing on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair.

[0061] Based on the above steps S201 to S202, the initial entangled photon pair is obtained according to the entanglement type; the initial entangled photon pair is subjected to steady-state processing based on the preset steady-state strategy to obtain the target entangled photon pair, and the environmental adaptive technology of the quantum error correction module can respond to and correct environmental disturbances in real time to maintain the steady state of the entangled photon pair. This capability greatly improves the reliability of quantum communication, especially in long-distance communication that is susceptible to environmental interference, ensuring that the quality of the entangled state is not affected.

[0062] Optionally, in step S20, performing a data processing operation on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair includes:

[0063] Step S203, obtaining the crystal temperature and the polarization angle of the light source;

[0064] Step S204, performing a disturbance correction operation on the initial entangled photons according to the crystal temperature and the polarization angle of the light source to obtain a target entangled photon pair.

[0065] Specifically, the generated initial entangled photon pairs then enter an advanced quantum error correction module equipped with highly sensitive monitoring equipment and a complex feedback system. The system uses environmental adaptive technology to analyze and respond to changes in a variety of environmental factors, from temperature, humidity to air pressure, in real time. By automatically adjusting the crystal temperature or the polarization angle of the light source, the degradation of entanglement quality caused by environmental disturbances (such as temperature fluctuations, mechanical vibrations, or electromagnetic interference) can be corrected instantly. In addition, the integrated quantum error correction protocol and dedicated quantum chip maintain and correct the entangled state at the microscopic level, greatly improving the stability and reliability of the experiment.

[0066] Based on the above steps S203 to S204, the crystal temperature and the polarization angle of the light source are obtained; the initial entangled photons are subjected to a disturbance correction operation according to the crystal temperature and the polarization angle of the light source to obtain the target entangled photon pair. By precisely controlling the crystal temperature and the polarization angle of the light source, the system can optimize the generation conditions of the entangled photon pair, thereby improving the quality of the entangled state. High-quality entangled photon pairs are the basis for achieving high-sensitivity quantum measurement and communication, and can greatly improve the accuracy and security of information transmission.

[0067] Optionally, in step S22, the target photon data includes a target photon sensitivity and a target photon response time, and the target entangled photon pair is detected to obtain the target photon data including:

[0068] Step S221, obtaining target dynamic data of the target entangled photon pair;

[0069] Step S222, detecting the target entangled photon pair according to the target dynamic data to obtain the target photon sensitivity and the target photon response time.

[0070] Specifically, the entangled photons that have been stabilized are guided to a detector unit that integrates multiple detection technologies. The unit mainly includes superconducting nanowire single photon detectors (SNSPDs) and emerging quantum dot detectors, which together provide nearly 100% detection efficiency and extremely low dark count rates, namely target dynamic data. This composite detection system can dynamically adjust the target photon sensitivity and target photon response time according to the specific state of the photon, which can effectively reduce erroneous readings and background noise.

[0071] Furthermore, each detection event is recorded by a high-precision time-correlated single-photon counting system (TCSPC), which not only accurately measures the arrival time of photons, but also analyzes the temporal relationship between photons, providing the necessary data support for accurate analysis of quantum states.

[0072] Based on the above steps S221 to S222, the target dynamic data of the target entangled photon pair is obtained; the target entangled photon pair is detected according to the target dynamic data to obtain the target photon sensitivity and the target photon response time. By dynamically adjusting the sensitivity and response time of the detector, the background noise can be effectively suppressed and erroneous readings can be reduced. This means that even in low light intensity or high noise environments, the target photons can be accurately captured, greatly improving the reliability and accuracy of the data.

[0073] Optionally, the data analysis operation includes at least one of: error rate evaluation, quantum state reconstruction, and entanglement verification.

[0074] Specifically, the data collected from the detector is transmitted to a dedicated quantum information processing platform, which uses quantum computing-enhanced algorithms for data processing, including error rate assessment, quantum state reconstruction, and entanglement verification.

[0075] Optionally, the quantum measurement method further includes:

[0076] Step S26: In response to obtaining the target quantum key, a security check operation is performed on the target quantum key.

[0077] Furthermore, when the target quantum key is obtained, a security check operation is performed on the target quantum key. The detected data is sent to a data processing unit, which uses advanced quantum computing software for data analysis. The software is responsible for identifying the fidelity of the entangled state, generating the quantum key, and performing security checks. For example, Bell's inequality test. The generated key is shared between the two parties for subsequent encrypted communications.

[0078] Based on the above step S26, in response to obtaining the target quantum key, a security check operation is performed on the target quantum key. By performing quantum security verification such as Bell's inequality test, it can be ensured that the quantum key generation process is not subject to unauthorized eavesdropping or interference. This verification is based on the principles of quantum mechanics and can provide security that traditional encryption technology cannot match, ensuring the absolute security of communications.

[0079] Figure 3 is a schematic diagram of a quantum measurement method according to one embodiment of the present invention, such as Figure 3 As shown, the method includes:

[0080] Step 1: Generation of entangled photons:

[0081] Specifically, a specially designed laser is used to emit a modulated high-energy beam to a nonlinear crystal (such as BBO or PPLN). The laser is equipped with a dual-wavelength function, allowing two beams of different wavelengths to be emitted simultaneously or alternately, so that the output can be dynamically adjusted according to the type of entanglement (polarization or time entanglement). The output of the laser is precisely controlled by a high-precision optical modulation system, which includes polarizers and wavelength filters, and is dynamically adjusted in combination with a machine learning algorithm to maximize the efficiency of entanglement generation. When the beam passes through the crystal, it uses the optical parametric down-conversion (SPDC) process to produce entangled photon pairs with lower energy. These photon pairs form specific quantum entanglement in polarization or time, providing a key measurement basis for subsequent steps.

[0082] Step 2: Stabilization of the entangled state:

[0083] Specifically, the generated entangled photon pairs then enter an advanced quantum error correction module equipped with highly sensitive monitoring equipment and a complex feedback system. The system uses environmental adaptive technology to analyze and respond to changes in a variety of environmental factors, from temperature, humidity to air pressure, in real time. By automatically adjusting the crystal temperature or the polarization angle of the light source, the system can instantly correct the degradation of entanglement quality caused by environmental disturbances (such as temperature fluctuations, mechanical vibrations, or electromagnetic interference). In addition, the integrated quantum error correction protocol and dedicated quantum chip maintain and correct the entangled state at the microscopic level, greatly improving the stability and reliability of the experiment.

[0084] Step 3: Photon detection and information reading:

[0085] Specifically, the entangled photons that have been stabilized are guided to a detector unit that integrates multiple detection technologies. The unit mainly includes superconducting nanowire single-photon detectors (SNSPDs) and emerging quantum dot detectors, which together provide nearly 100% detection efficiency and extremely low dark count rates. This composite detection system can dynamically adjust the sensitivity and response time according to the specific state of the photons, effectively reducing false readings and background noise. Each detection event is recorded by a high-precision time-correlated single-photon counting system (TCSPC), which not only accurately measures the arrival time of photons, but also analyzes the time relationship between photons, providing the necessary data support for accurate analysis of quantum states.

[0086] Step 4: Data processing and analysis:

[0087] Specifically, the data collected from the detector is transmitted to a dedicated quantum information processing platform. The platform uses quantum computing-enhanced algorithms for data processing, including error rate assessment, quantum state reconstruction, and entanglement verification. The data processing software also integrates advanced data visualization tools to provide intuitive results display, allowing researchers to adjust experimental parameters based on real-time data and optimize system performance. In addition, the software supports automated experimental result interpretation, helping users quickly apply quantum measurement results to various scientific and industrial scenarios, thereby achieving efficient quantum information extraction and application.

[0088] Application scenarios may include the following:

[0089] (1) Multinational Corporations: Provide a secure data communication and information sharing platform for multinational corporations, and support quantum secure communications across national borders.

[0090] (2) Scientific research institutions: Realize the secure transmission and sharing of scientific research data, especially international cooperation in high-tech fields such as physics, chemistry and biology; provide advanced quantum security solutions for scientific research institutions' communications to ensure communication security and data confidentiality.

[0091] Based on the above embodiments, a method is adopted in which the initial entangled photon pair is subjected to steady-state processing based on a preset steady-state strategy to obtain a target entangled photon pair; the target entangled photon pair is detected to obtain target photon data; and a data analysis operation is performed on the target photon data to obtain a target quantum key, thereby achieving the purpose of generating stable and efficient entangled photons, and realizing the technical effect of improving the sensitivity and accuracy of optical measurement, thereby solving the technical problem in the prior art that the sensitivity and accuracy of optical measurement are low due to the difficulty in generating and maintaining the entangled state in quantum measurement technology.

[0092] Figure 4 is a schematic diagram of another quantum measurement method according to one embodiment of the present invention, such as Figure 4As shown, the method includes: integrating quantum relays and multifunctional quantum network platforms, achieving longer-distance quantum communication and supporting a variety of quantum network services by expanding the scope and functionality of existing quantum key distribution (QKD) systems. For example, quantum key distribution, quantum state teleportation, and quantum internet. Specifically, the following steps are included:

[0093] 1. Integration of quantum relay nodes: Integrate quantum relay nodes in quantum communication links to enhance signals and regenerate entangled states, overcoming the attenuation and loss of photons during long-distance transmission in optical fibers. Set up quantum relay nodes at key locations, each equipped with a photon source, entanglement switch, and detector. These nodes can regenerate and distribute entangled photon pairs to ensure continuous transmission of information and scalability of the network.

[0094] Specifically, by deploying quantum relay nodes at key locations, the system can overcome the loss and attenuation of photons when transmitted in optical fibers, effectively increasing the communication distance. The entangled photon generation and distribution function of the relay nodes enables quantum information to be transmitted in a wider network without worrying about signal quality degradation. This makes the quantum network not only limited to short-distance urban areas, but can also be extended across cities and even across borders.

[0095] 2. Multi-wavelength quantum communication: Realize multi-wavelength quantum communication function, support the simultaneous transmission of multiple quantum signals in the same optical fiber network, and increase the data throughput and parallel processing capability of the network. Using dense wavelength division multiplexing technology (DWDM), each photon pair of different wavelengths carries different information flows, allowing the quantum network to process multiple communication tasks in parallel.

[0096] Specifically, the use of dense wavelength division multiplexing (DWDM) technology allows multiple quantum signals to be transmitted simultaneously within the same optical fiber. This not only increases the data throughput of the network, but also allows multiple communication and data tasks to be processed in parallel. In application scenarios with high data demand, such as data centers and large enterprises, this technology greatly improves efficiency and responsiveness.

[0097] 3. Quantum state teleportation: In addition to quantum key distribution, the quantum state teleportation function is added, allowing quantum states to be transmitted in the network without a physical transmission carrier. Entangled photon pairs in the network are used as resources to achieve instant transmission of quantum information by sharing entangled states between source and target nodes and performing appropriate quantum measurements and classical communications.

[0098] Specifically, through quantum state teleportation technology, the system can instantly transmit quantum states without a physical transmission medium. This technology is based on the non-local nature of quantum entanglement and provides a communication method that cannot be eavesdropped or interfered with in theory. In areas that require extremely high security, such as communications and financial transactions, this function provides unparalleled security.

[0099] 4. Advanced quantum computing and data processing: Provide advanced quantum computing support to optimize network operations, data security, and error correction capabilities. Develop integrated quantum computing modules equipped with high-performance quantum processors to process and optimize quantum data flows and encryption tasks in the network.

[0100] Specifically, the integrated high-performance quantum computing module enables the network to locally optimize quantum data flow and encryption tasks. This not only improves the efficiency of network operations, but also enhances the security and reliability of data processing. The advantage of quantum computing is that it can perform complex algorithms and large-scale data analysis, which is of great significance for maintaining network security and promoting scientific research.

[0101] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a grid device, etc.) to execute the methods of various embodiments of the present invention.

[0102] In this embodiment, a quantum measurement device is also provided, which is used to implement the above embodiments and preferred implementations, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0103] Figure 5 is a block diagram of a quantum measurement device according to one embodiment of the present invention, such as Figure 5 As shown, the device comprises:

[0104] A steady-state processing module 501 is used to perform steady-state processing on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair;

[0105] A detection module 502 is used to detect the target entangled photon pair and obtain target photon data;

[0106] The data analysis module 503 is used to perform data analysis operations on the target photon data to obtain the target quantum key.

[0107] Optionally, the quantum measurement device also includes an acquisition module 504 for acquiring an initial entangled photon pair according to the entanglement type; the steady-state processing module 501 is also used to perform steady-state processing on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair.

[0108] Optionally, the acquisition module 504 is further used to acquire the crystal temperature and the polarization angle of the light source; perform a disturbance correction operation on the initial entangled photons according to the crystal temperature and the polarization angle of the light source to obtain a target entangled photon pair.

[0109] Optionally, the acquisition module 504 is further used to acquire target dynamic data of the target entangled photon pair; the detection module 502 is further used to detect the target entangled photon pair according to the target dynamic data to obtain the target photon sensitivity and the target photon response time.

[0110] Optionally, the data analysis operation includes at least one of: error rate evaluation, quantum state reconstruction, and entanglement verification.

[0111] Optionally, the quantum measurement device further includes a security check module 305, which is used to perform a security check operation on the target quantum key in response to obtaining the target quantum key.

[0112] According to one embodiment of the present invention, there is also provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the above-mentioned quantum measurement method is executed when the program is running.

[0113] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0114] Step S1, performing steady-state processing on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair;

[0115] Step S2, detecting the target entangled photon pair to obtain target photon data;

[0116] Step S3, performing data analysis operations on the target photon data to obtain the target quantum key.

[0117] According to one embodiment of the present invention, a computer-readable storage medium is also provided, including: the computer-readable storage medium includes a stored executable program, wherein when the executable program is running, the device where the storage medium is located is controlled to execute the above-mentioned quantum measurement method.

[0118] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0119] Step S1, performing steady-state processing on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair;

[0120] Step S2, detecting the target entangled photon pair to obtain target photon data;

[0121] Step S3, performing data analysis operations on the target photon data to obtain the target quantum key.

[0122] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0123] According to one embodiment of the present invention, a computer program product is also provided, including: a computer program, which implements the above-mentioned quantum measurement method when executed by a processor.

[0124] Optionally, in this embodiment, the computer program product may be configured to store computer program instructions for performing the following steps:

[0125] Step S1, performing steady-state processing on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair;

[0126] Step S2, detecting the target entangled photon pair to obtain target photon data;

[0127] Step S3, performing data analysis operations on the target photon data to obtain the target quantum key.

[0128] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0129] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0130] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0131] In some embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0132] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0133] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0134] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server or a grid device, etc.) to perform all or part of the steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc., which can store program codes.

[0135] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A quantum measurement method, characterized in that: include: Performing steady-state processing on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair; Detecting the target entangled photon pair to obtain target photon data; A data analysis operation is performed on the target photon data to obtain a target quantum key.

2. The quantum measurement method according to claim 1, characterized in that: Processing the initial entangled photon pair based on the preset steady-state strategy to obtain the target entangled photon pair includes: Obtaining the initial entangled photon pair according to the entanglement type; The initial entangled photon pair is subjected to steady-state processing based on the preset steady-state strategy to obtain the target entangled photon pair.

3. The quantum measurement method according to claim 2, characterized in that: Performing the data processing operation on the initial entangled photon pair based on the preset steady-state strategy to obtain the target entangled photon pair includes: Get crystal temperature and light source polarization angle; A disturbance correction operation is performed on the initial entangled photons according to the crystal temperature and the polarization angle of the light source to obtain the target entangled photon pair.

4. The quantum measurement method according to claim 1, characterized in that: The target photon data includes target photon sensitivity and target photon response time. The target entangled photon pair is detected to obtain the target photon data including: Acquiring target dynamic data of the target entangled photon pair; The target entangled photon pair is detected according to the target dynamic data to obtain the target photon sensitivity and the target photon response time.

5. The quantum measurement method according to claim 1, characterized in that: The data analysis operation includes at least one of the following: error rate evaluation, quantum state reconstruction and entanglement verification.

6. The quantum measurement method according to claim 1, characterized in that: The method further comprises: In response to acquiring the target quantum key, a security check operation is performed on the target quantum key.

7. A quantum measurement device, characterized in that: include: A steady-state processing module, used to perform steady-state processing on the initial entangled photon pair based on a preset steady-state strategy to obtain a target entangled photon pair; A detection module, used to detect the target entangled photon pair to obtain target photon data; A data analysis module is used to perform a data analysis operation on the target photon data to obtain a target quantum key.

8. An electronic device, comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to perform the quantum measurement method described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program is configured to execute the quantum measurement method described in any one of claims 1 to 6 when running on a computer or a processor.

10. A computer program product, characterized in that The invention comprises a computer program, which, when executed by a processor, implements the steps of the quantum measurement method according to any one of claims 1 to 6.

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