Atomic detection and feedback rearrangement system

Abstract

The utility model relates to the technical field of quantum computing, and belongs to an atom detection and feedback rearrangement system. Comprising a Pxie case, the Pxie case is connected with a detector for acquiring image information and an acousto-optic deflector 2DAOD for executing atom rearrangement, an image acquisition and analysis card, a synchronous clock card and a rearrangement waveform generation card are arranged in the Pxie case, the image acquisition and analysis card and the rearrangement waveform generation card are respectively connected with the synchronous clock card, and the synchronous clock card is connected with the detector. The image acquisition and analysis card is connected with the rearrangement waveform generation card, and the rearrangement waveform generation card is connected with the acousto-optic deflector 2DAOD. According to the utility model, the clock physical line of the clock channel in the Pxie case is defined as the data transmission line, and low-delay feedback is completed through the data transmission line customized by the image acquisition and analysis card backboard, so that the time consumption of atomic rearrangement is further reduced, and the efficiency of forming a target configuration by atomic rearrangement is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quantum computing, and belongs to an atomic detection and feedback rearrangement system. Background Art

[0002] Optical tweezers, also known as single-beam gradient optical traps, are a technology that uses the manipulation force generated by a laser beam to manipulate microscopic particles (such as atoms and ions). The optical tweezers that capture particles are a special light field that, when interacting with the particles, exhibits the effect of a finite-depth potential well. When the kinetic energy of the particle is not enough to overcome the potential energy of the potential well, the particle will always remain in the well, and the purpose of migrating the particle can be achieved by moving the light beam.

[0003] In recent years, defect-free neutral atom arrays have become a widely-watched quantum simulation and computing platform due to their high scalability and high programmability. At present, most rearrangement systems use a system structure of computers, image acquisition and analysis cards, and arbitrary waveform generators. The computer needs to receive data from a highly sensitive camera to analyze the atomic position distribution. The algorithm determines how to assign the initially randomly distributed atoms to the target position and regenerate the corresponding radio frequency signal to drive the movement of the atoms. In order to obtain a defect-free array, the initially randomly loaded atoms need to be rearranged to achieve the target configuration. The total time cost of atomic rearrangement includes steps such as atom detection, atomic occupancy analysis, rearrangement strategy formulation, drive waveform generation, and atom movement. However, as the scale of the neutral atom array increases, the rearrangement time cost will increase, and the atoms trapped by the optical tweezers will also be more likely to escape. This problem has become one of the fundamental limitations that hinder the realization of larger-scale arrays.

[0004] In order to further reduce the time consumption of atomic rearrangement, it is necessary to propose an atomic detection and rearrangement system with low-latency feedback. Utility Model Content

[0005] The utility model provides an atom detection and feedback rearrangement system to overcome the above technical problems.

[0006] In order to achieve the above object, the utility model provides the following implementation scheme:

[0007] The present application provides an atomic detection and feedback rearrangement system, including a Pxie chassis, the Pxie chassis is connected to a detector for collecting image information and an acousto-optic deflector 2DAOD for performing atomic rearrangement, the Pxie chassis is provided with an image acquisition and analysis card, a synchronous clock card and a rearrangement waveform generating card, the image acquisition and analysis card and the rearrangement waveform generating card are respectively connected to the synchronous clock card, the image acquisition and analysis card is connected to the rearrangement waveform generating card, and the rearrangement waveform generating card is connected to the acousto-optic deflector 2DAOD.

[0008] Preferably, the Pxie chassis is provided with a hybrid slot, a device slot and a clock slot.

[0009] Preferably, the image acquisition and analysis card is arranged in a clock slot, and uses a clock outgoing channel in the Pxie chassis to transmit data.

[0010] Preferably, the synchronous clock card is arranged in a mixing channel, and the rearranged waveform generating card is arranged in a device channel, and the clock information is output through the front panel of the synchronous clock card.

[0011] Preferably, the synchronous clock card is arranged in the equipment channel, and the rearranged waveform generating card is arranged in the mixing channel.

[0012] Preferably, the detector is provided with a Cameralink interface for transmitting image information to an image acquisition and analysis card, and the Cameralink interface is connected to the Pxie chassis.

[0013] Preferably, the backplane of the image acquisition and analysis card sends information to the rearrangement waveform generating card at a rate of 125Mb / s or 250Mb / s or 5Gb / s, and the rearrangement waveform generating card transmits the signal to the acousto-optic deflector 2DAOD to perform atomic rearrangement.

[0014] Preferably, the detector comprises an optical tweezers instrument, a high-sensitivity camera or a single-photon detector.

[0015] Compared with the prior art, the utility model provides an atomic detection and feedback rearrangement system, which has the following beneficial effects:

[0016] The utility model defines the clock physical circuit of the clock slot in the Pxie chassis as a data transmission circuit, and completes low-latency feedback through the customized data transmission circuit of the image acquisition and analysis card backplane, further reducing the time consumption of atomic rearrangement and improving the efficiency of atomic rearrangement to form the target configuration. Among them, the customized data transmission circuit of the backplane can be customized and wired as needed to achieve different functional requirements.

[0017] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural block diagram of an atomic detection and feedback rearrangement system of the utility model;

[0019] Explanation of the reference numerals: 1. Pxie chassis; 2. Detector; 3. Image acquisition and analysis card; 4. Synchronous clock card; 5. Rearrangement waveform generation card; 6. Acousto-optic deflector 2DAOD; 11. Mixing channel; 12. Equipment channel; 13. Clock channel; 21. Cameralink interface. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0021] The utility model provides an atomic detection and feedback rearrangement system, referring to Figure 1 , including a Pxie chassis 1, the Pxie chassis 1 is connected to a detector 2 for collecting image information and an acousto-optic deflector 2DAOD6 for performing atomic rearrangement, the Pxie chassis 1 is provided with an image acquisition and analysis card 3, a synchronous clock card 4 and a rearrangement waveform generating card 5, the image acquisition and analysis card 3 and the rearrangement waveform generating card 5 are respectively connected to the synchronous clock card 4, the image acquisition and analysis card 3 is connected to the rearrangement waveform generating card 5, and the rearrangement waveform generating card 5 is connected to the acousto-optic deflector 2DAOD6.

[0022] In the specific implementation manner of the utility model, the image acquisition and analysis card 3 can also be replaced by a counting card.

[0023] Specifically, the Pxie chassis 1 is provided with a mixing slot 11, a device slot 12 and a clock slot 13.

[0024] Specifically, the image acquisition and analysis card 3 is arranged in the clock slot 13, and uses the clock diffusion channel in the Pxie chassis to transmit data.

[0025] See also Figure 1 In a specific implementation of the utility model, the synchronous clock card 4 is arranged in the mixing slot 11, the rearrangement waveform generating card 5 is arranged in the equipment slot 12, and the clock information is output through the front panel of the synchronous clock card 4.

[0026] In another specific implementation of the present invention, the synchronous clock card 4 is arranged in the equipment slot 12 , and the rearranged waveform generating card 5 is arranged in the mixing slot 11 .

[0027] Specifically, the detector 2 is provided with a Cameralink interface 21 for transmitting image information to the image acquisition and analysis card 3 , and the Cameralink interface 21 is connected to the Pxie chassis 1 .

[0028] Specifically, the backplane of the image acquisition and analysis card 3 sends information to the rearrangement waveform generating card 5 at a rate of 125Mb / s or 250Mb / s or 5Gb / s, and the rearrangement waveform generating card 5 transmits the signal to the acousto-optic deflector 2DAOD6 to change the direction of the laser and perform atomic rearrangement.

[0029] Specifically, the detector 2 includes an optical tweezers instrument, a high-sensitivity camera or a single-photon detector.

[0030] In a specific embodiment of the utility model, the optical tweezers, high-sensitivity camera or single-photon detector transmits the image to the image acquisition and analysis card 3 of the Pxie chassis interface through the Cameralink interface 21, and the image acquisition and analysis card receives pixels line by line. On this basis, the image acquisition and analysis card calculates the accumulated value of the pixels in the light trap while receiving the data, and obtains a state value of 0 or 1 according to the threshold.

[0031] The image acquisition and analysis card 3 is provided with a unit processor ARM. The state value of the light trap is calculated and sent to the ARM. The user can use C language in the ARM to calculate the rearrangement parameters according to the light trap state, or run an embedded operating system in the ARM and use a high-level language to calculate the rearrangement parameters.

[0032] After the rearrangement parameters are calculated, they are sent to the rearrangement waveform generation card 5 through the backplane signal line of the image acquisition and analysis card 3. The transmission rate is 125Mb / s, 250Mb / s or 5Gb / s, and the transmission rate is achieved using the high-speed serial port of the FPGA. The rearrangement waveform generation card 5 sends out a waveform sequence according to the received rearrangement parameters to quickly rearrange atoms to obtain the target configuration.

[0033] The synchronous clock card 4 provides the synchronous clock to the rearrangement waveform generation card 5 through the panel. If the clock synchronization requirement is not high, the synchronous clock card 4 may not be used.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An atomic detection and feedback rearrangement system, comprising a Pxie chassis (1), characterized in that: The Pxie chassis (1) is connected to a detector (2) for collecting image information and an acousto-optic deflector 2D AOD (6) for performing atomic rearrangement. An image acquisition and analysis card (3), a synchronous clock card (4) and a rearrangement waveform generation card (5) are arranged inside the Pxie chassis (1). The image acquisition and analysis card (3) and the rearrangement waveform generation card (5) are respectively connected to the synchronous clock card (4), the image acquisition and analysis card (3) is connected to the rearrangement waveform generation card (5), and the rearrangement waveform generation card (5) is connected to the acousto-optic deflector 2D AOD (6).

2. An atomic detection and feedback rearrangement system as claimed in claim 1, characterized in that: The Pxie chassis (1) is provided with a mixing slot (11), a device slot (12) and a clock slot (13).

3. An atomic detection and feedback rearrangement system as claimed in claim 2, characterized in that: The image acquisition and analysis card (3) is arranged in the clock slot (13) and uses the clock diffusion channel in the Pxie chassis to transmit data.

4. An atomic detection and feedback rearrangement system as claimed in claim 2, characterized in that: The synchronous clock card (4) is arranged in the mixing channel (11), and the rearranged waveform generating card (5) is arranged in the equipment channel (12), and clock information is output through the front panel of the synchronous clock card (4).

5. An atomic detection and feedback rearrangement system as claimed in claim 2, characterized in that: The synchronous clock card (4) is arranged in the equipment channel (12), and the rearranged waveform generation card (5) is arranged in the mixing channel (11).

6. The atomic detection and feedback rearrangement system according to claim 1, characterized in that: The detector (2) is provided with a Cameralink interface (21) for transmitting image information to an image acquisition and analysis card (3), and the Cameralink interface (21) is connected to the Pxie chassis (1).

7. The atomic detection and feedback rearrangement system according to claim 1, characterized in that: The backplane of the image acquisition and analysis card (3) sends information to the rearrangement waveform generation card (5) at a rate of 125Mb / s, 250Mb / s or 5Gb / s, and the rearrangement waveform generation card (5) transmits the signal to the acousto-optic deflector 2D AOD (6) to perform atomic rearrangement.

8. The atomic detection and feedback rearrangement system according to claim 1, characterized in that: The detector (2) comprises an optical tweezers instrument, a high-sensitivity camera or a single-photon detector.

Images