131 results about "Energy level" patented technology

The invention discloses a method and a system for determining the reaction activity of material molecules based on quantum computing, and relates to the technical field of material performance analysis based on quantum computing, and the method comprises the following steps: generating UCCSD (Unified Conduction Cathode Spectroscopy) simulation according to an electronic structure of molecules of a target material; obtaining at least one effective excitation operator based on parameters in the coefficient of each excitation operator in UCCSD simulation and by combining all the excitation operators; constructing a quantum circuit according to all the effective excitation operators; determining energy level distribution of molecules of the target material based on the quantum circuit; and determining the reaction activity of the molecules of the target material according to the energy level distribution of the molecules of the target material. According to the method, in the process of obtaining the effective excitation operator, an ADAPT-VQE algorithm does not need to be executed, so that the analysis cost of the physical and chemical properties of the material can be reduced, and the analysis efficiency of the physical and chemical properties of the material can also be improved.

The invention provides a partial discharge detection system based on a Rydberg atom quantum coherence effect, and the system comprises an optical excitation module which is used for transmitting two-photon laser to excite hot atoms to enter a Rydberg state; the atomic gas chamber is used for accommodating hot atoms and is coupled with an electromagnetic field generated by the partial discharge signal, so that the hot atoms generate energy level response change under the action of the electromagnetic field; the detection light path module is used for detecting a change signal of light signal intensity in the atomic gas chamber and converting the change signal into an electromagnetic response characteristic of an electromagnetic field; the signal acquisition and processing module is used for receiving the electromagnetic response characteristics, demodulating and analyzing the electromagnetic response characteristics and extracting characteristic parameters of the partial discharge signals; and the control and calibration module is used for receiving the characteristic parameters of the partial discharge signal, performing calibration based on an energy level frequency shift rule of Rydberg atoms, and outputting electric field intensity subjected to quantization calibration. The system can realize high-sensitivity, anti-interference and traceable detection of weak partial discharge signals.

The invention discloses a time-resolved LIBS (laser-induced breakdown spectroscopy) system and a sample component analysis method and product thereof, and relates to the field of laser-induced breakdown spectroscopy. After the sample is irradiated by the ablation laser, plasma is generated; in the plasma expansion and cooling process, excited state atoms and ions are subjected to energy level transition, and a characteristic radiation spectrum is released; the delay control module sets different delay time so as to control the working time interval of the laser generator and the spectrograph; the spectrograph receives the characteristic radiation spectrums at different delay times by using an optical fiber probe, stimulates the characteristic radiation spectrums at the integration time, and determines characteristic radiation spectral lines of different elements; and the computer analyzes the characteristic radiation spectral lines, determines spectral line intensities of different elements, and determines a component result of the sample in combination with the calibrated spectral line intensities and the element content function curve so as to improve the accuracy of the component result of the sample.

The invention discloses a compound and a preparation method thereof and an electronic device, the molecular structure general formula of the compound is shown in the specification, R is selected from one of the following structures, X1-X2 are respectively and independently selected from one of oxygen atoms, sulfur atoms, selenium atoms and nitrogen atoms, and X is a positive integer. X < 3 > to X < 4 > are respectively and independently selected from one of the following structures; and X < 5 > to X < 6 > are respectively and independently selected from any one of alkyl groups. According to the compound provided by the invention, the electron pushing and pulling capability in the compound is adjusted by changing the structures of a donor and an acceptor, so that the purpose of regulating and controlling molecular electron cloud distribution and energy level is achieved, and key physical properties such as emission wavelength, radiative transition rate (kr) and backlash crossing rate (kRISC) of a material are systematically regulated and controlled. The compound as a guest material of a luminescent layer has good comprehensive performance when being applied to organic electroluminescent devices for solution processing and vacuum evaporation.

Systems and methods of imaging a sample using a charged-particle beam apparatus are disclosed. The charged-particle beam apparatus may include a charged-particle source configured to generate primary charged particles, the primary charged particles forming a primary charged-particle beam along a primary optical axis, and a charged-particle detector comprising a plurality of con-centric segments of a charged-particle sensitive material configured to detect charged particles emitting from a sample after interaction of the primary charged-particle beam with the sample, wherein each segment of the plurality of concentric segments is configured to collect the emitted charged particles having a range of energy levels and a dominant energy level.

The invention provides a quantum dot light source and a preparation method thereof. The quantum dot light source can be applied to the technical field of semiconductors and quantum information. The quantum dot light source comprises a first doping layer, a quantum dot layer, a barrier layer, an energy level matching layer and a second doping layer which are sequentially stacked, the first doping layer is used for providing holes under electrical excitation; the quantum dot layer comprises a plurality of quantum dots, and the quantum dots are used for emitting fluorescence when holes from the first doped layer and electrons which are from the second doped layer and pass through the barrier layer are compounded in the quantum dots; the barrier layer is used for preventing holes from the quantum dot layer from passing through under electrical excitation and enabling electrons which come from the energy level matching layer and have energy equal to preset energy to pass through; the energy level matching layer is used for adjusting the energy of the electrons from the second doping layer to preset energy under electrical excitation; and the second doping layer is used for providing electrons under electrical excitation.

This provides a structure that exhibits a high degree of balance between durability, conductivity, and quantum efficiency. [Solution] A layered structure comprising a substrate and a high-density particle layer on the substrate, wherein the high-density particle layer contains nanoparticles with an inorganic film formed on its surface, the nanoparticles having a particle size of 1 nm to 50 nm, the high-density particle layer having a packing density of nanoparticles per unit volume of 30 vol% to 80 vol%, the inorganic film having a thickness of 0.1 nm to 5 nm, the energy level at the upper end of the valence band of the inorganic film being the same as or lower than the energy level at the upper end of the valence band of the nanoparticles, and the energy level at the lower end of the conduction band of the inorganic film being the same as or higher than the energy level at the lower end of the conduction band of the nanoparticles.

Systems and methods of imaging a sample using a charged-particle beam apparatus are disclosed. The charged-particle beam apparatus may comprise an energy discrimination device configured to filter incoming signal charged-particles having a plurality of ranges of energy levels. The energy discrimination device may include an electromagnetic charged-particle deflector configured to deflect a path of the incoming signal charged-particles based on an energy level of the incoming signal charged-particles; an aperture formed on an aperture plane, the aperture configured to allow a portion of the incoming signal charged-particles exiting the electromagnetic charged-particle deflector to pass through based on the deflection; and a control lens located upstream from the electromagnetic charged-particle deflector and configured to focus the incoming signal charged-particles on the aperture plane.

A computer implemented method (200) comprising selecting one or more pairs of energy levels of an isotope of an ion for a qubit for a quantum computer, wherein each of the one or more pairs of energy levels comprises a first metastable state and a second metastable state.

The application discloses a crude oil water content analysis method and device. The method comprises the following steps: obtaining low, medium and high energy level light quantum detection data of a penetrating crude oil sample; calculating photoelectric effect cross section coefficients of low and medium energy levels, simultaneously solving oil, gas and water phase fractions and calculating a first mixed density; combining Compton reaction cross section coefficient of high energy level data to calculate a second mixed density; comparing the deviation of the two mixed densities, if the deviation is greater than a preset threshold, the detection time is automatically extended for re-measurement; if the deviation is still greater than the preset threshold, it is determined that the sample is in a gas-containing or non-full-liquid state, the high energy level calculation result is actively removed, and only the low and medium energy level data are used to solve the phase fraction and normalized output the final water content. The application innovatively introduces a density deviation check and a dynamic delay mechanism, effectively distinguishes and separates the gas phase interference, and realizes non-contact and high-precision automatic water content detection.

This invention discloses a quantum cascade laser and its fabrication method, relating to the field of laser technology. The quantum cascade laser includes a substrate layer; a lower waveguide layer located on the substrate layer; an active layer located on the lower waveguide layer and including multiple injection layers located on the lower waveguide layer; and multiple light-emitting layers, wherein electrons in the light-emitting layers transition from high energy levels to low energy levels, suitable for exciting electrons to generate excitation light; wherein the light-emitting layers and injection layers are periodically stacked in an alternating cascade structure, each injection layer extracts low-energy electrons from the adjacent light-emitting layer above the injection layer and transports the low-energy electrons to the light-emitting layer of the previous period adjacent to the injection layer to form high-energy electrons, thereby transporting electrons between light-emitting layers belonging to two adjacent periods; and an upper waveguide layer located on the light-emitting layers, which can achieve a highly concentrated number of high-energy electrons, thereby realizing a large-scale, high-power quantum cascade laser.

The application belongs to the technical field of radio frequency electromagnetic field measurement, and particularly discloses a quantum field intensity measurement method and system of offset electric field regulation, which comprises the following steps: selecting a Rydberg atomic energy level close to resonance according to the microwave frequency of a measured signal; determining a coupling light wavelength according to the Rydberg atomic energy level, preparing a Rydberg atom, simultaneously obtaining a difference value between the microwave frequency of the measured signal and a resonance transition frequency, and obtaining an energy level offset value according to the difference value; obtaining a polarizability of the Rydberg atomic energy level, obtaining an offset electric field value to be applied according to the energy level offset value and the polarizability; and starting the offset electric field according to the offset electric field value, so that the relevant energy level of the Rydberg atom produces a movement in the offset electric field; when the energy difference between the offset Rydberg energy level and the adjacent energy level resonates with the microwave frequency of the measured signal, the offset sub-energy level forms an energy level splitting, and a frequency splitting is generated, and the electric field of the measured signal is measured according to the interval between the frequency splittings.

Organic emissive devices are provided that include host structures with electron and / or hole transporting components having specific energy levels that promote good charge balance and enhanced charge capture. The disclosed energy level structures provide host systems that reduce exciplex formation and thereby promote improved device internal quantum efficiency and stability, or which intentionally include exciplex formation so as to modify the average orientation of the dipole.

The invention relates to a Ramsy calibration method, system and device capable of determining a correction direction and a medium, and belongs to the technical field of quantum, the Ramsy calibration method capable of determining the correction direction comprises the following steps: estimating a Rabian detuning amount between a scanning microwave or laser frequency and an energy level difference; setting a frequency offset on the basis of the Ratio detuning amount, and changing the Ratio detuning amount to a positive value; and performing Ramsy calibration based on the positive-value Rabian detuning amount to obtain a determined energy level difference. According to the method, the detuning amount is manually set to ensure that the detuning amount is positive, so that the detuning obtained by the Ramsey interference method can be directly used for calculating the energy level difference without verifying whether the correction direction is correct or not, the subsequent experiment for judging whether the detuning is positive or negative is reduced, and the speed of calibrating the energy level difference of atoms or ions is increased.

The embodiment of the application discloses a high-dimensional NOT gate implementation method based on a lattice cold atom system and a related device. The method comprises sequentially exciting the first n energy levels of the lattice cold atom system through respective excitation frequencies, exciting k energy levels upwards, exciting the first n-1 energy levels after the upward excitation k-1 energy levels downwards, and exciting the n energy level after the upward excitation to the first energy level, thereby obtaining a high-dimensional NOT gate with a dimension of n, wherein k is an integer greater than n-1, so that the high-dimensional NOT gate is directly realized in the lattice cold atom system. The embodiment of the application is beneficial to reducing the depth of the quantum circuit, thereby reducing the accumulation and amplification of errors, and realizing high-dimensional quantum computing.

Disclosed are a light-emitting material, a light-emitting device, a display panel and a display device, the light-emitting material comprising: a light-emitting compound, by which it is possible to solve the problem that hole injection is difficult to improve while giving consideration to both a high T1 energy level and a shallow HOMO, so that the energy levels of HOMO and LOMO are more matched, the light-emitting material has high T1 energy level and shallow HOMO energy level, hole injection can be improved, and the light-emitting material has excellent light-emitting performance. And the formation of exciplexes is inhibited, so that holes and electrons can be injected into the light-emitting layer more smoothly.

The invention relates to a method for calibrating a two-level spin quantum system in the form of a double quantum dot comprising a left dot and a right dot, coupled to a microwave cavity by symmetric and antisymmetric magnetic fields, the system being subjected to a bias voltage, the method being characterized by the steps of: - setting the bias voltage (ε) to zero volts, - determining the wave function φp of each of the quantum dots, - calculating and / or setting the antisymmetric magnetic coupling constant αas and the symmetric magnetic coupling constant αs, calculating and / or setting the tunnel coupling constant and / or the symmetric magnetic coupling constant αs and / or the antisymmetric magnetic coupling constant αas.

The invention relates to the technical field of optical clock metering instruments, in particular to a microscopic particle mass measurement method and system based on an optical lattice clock, and the method comprises the steps: forming a one-dimensional horizontal shallow light lattice to constrain a to-be-measured microscopic particle based on an optical lattice clock platform; firstly, to-be-measured particles are subjected to laser cooling and then loaded to optical lattices, and the to-be-measured particles are prepared to a ground state single Zeeman sub-energy level through optical pumping. Then, modulating a beam of lattice light in the one-dimensional horizontal shallow light lattice to enable the lattice light to periodically shake; then, determining the line widths of clock transition spectral lines of the particles to be measured under different modulation amplitudes, and finding out the critical modulation amplitude corresponding to the minimum line width; and finally, according to the critical modulation amplitude and the lattice light wavelength, accurately deducing the absolute mass of the microscopic particles imprisoned by the light lattice.

The invention discloses an ion control method and device, and belongs to the technical field of quantum computing. The device comprises an ion shielding module and an ion control module. The ion shielding module is used for irradiating a first ion which does not need to be controlled in the ion trap with first shielding light, so that the energy level of the first ion is changed from an initial energy level to a first energy level under the action of the first shielding light; and the ion control module is used for irradiating control light to second ions needing to be controlled in the ion trap after the ion shielding module irradiates the first ions with the first shielding light, so that the second ions generate energy level change under the action of the control light, and the first ions at the first energy level do not generate energy level change under the irradiation of the control light. According to the invention, low-crosstalk control of ions can be realized.

The invention provides an organic compound and an organic electroluminescent device comprising the same, the organic compound has a structure as shown in a formula I. Through the design of a molecular structure and the synergistic effect between group structures, the HOMO and LUMO energy levels of a molecular skeleton can be adjusted, the organic compound has excellent bipolar charge transport characteristics, balanced transport of holes and electrons is realized, and the organic electroluminescent device has a good application prospect. Meanwhile, the organic semiconductor material has high singlet state energy level and triplet state energy level. The organic compound is used as a main body material of an organic electroluminescent device, the luminous efficiency of the device can be improved, the efficiency roll-off of the device is slow, the stability is better, and an existing organic electroluminescent functional material system is greatly enriched.

An organic EL device includes an emitting region and a first anode side organic layer. The first anode side organic layer contains a first material. The emitting region includes a first emitting layer containing first and second host materials and a second emitting layer containing a third host material. Energy levels of highest occupied molecular orbitals of the first material, the first host material, and the second host material HOMO(HT1), HOMO(H1), and HOMO(H2) satisfy a relationship of a numerical formula (Numerical Formula A1) below, and triplet energies of the first host material, the second host material, and the third host material T1(H1), T1(H2), and T1(H3) satisfy relationships of numerical formulae (Numerical Formula A2 and Numerical Formula A3) below,HOMO⁡(HT⁢1)>HOMO⁡(H⁢2)>H⁢O⁢M⁢O⁡(H⁢1)(Numerical⁢ Formula⁢ A⁢1)T1(H⁢1)>T1(H⁢3)(Numerical⁢ Formula⁢ A⁢2)T1(H⁢2)>T1(H⁢3).(Numerical⁢ Formula⁢ A⁢3)

The invention provides a DFT calculation model optimization method for vibration-electron interaction in an X-type dual helicene configuration, and belongs to the technical field of quantum chemistry multi-scale calculation. Firstly, experimental data of the X-type double helicene material are obtained through a spectrum technology, microscopic fine data are obtained through quantum chemistry DFT calculation, and energy barrier, vibration spectrum, electron cloud density and molecular orbital energy level data of the X-type double helicene material are obtained through combination. For a molecular aggregation state, a periodic DFT and molecular mechanics MM coupling method is adopted, an active region is described by DFT, a weak interaction region is processed by MM, and periodic characteristics of an energy band structure are calculated based on a mixed precision calculation framework. The vibration-electron interaction of the atomic scale is associated with mesoscopic characteristics such as the energy band structure and the non-radiative transition of molecules through a multi-scale coupling DFT algorithm, the macroscopic photoelectric characteristics of the material are output, and closed loop calculation from the microcosmic level to the macroscopic level is completed.

The invention provides a trap level measurement method considering temperature rise rate thermal stimulation current, and belongs to the technical field of insulating materials. ET is calculated according to the change relation of the peak temperature Tm along with the heating rate beta. The TSDC curve often has overlapped peaks, the parameter of a single peak is difficult to accurately extract in the TSDC curve with a single heating rate, and the method of changing beta can effectively distinguish the peaks in different dynamic processes by tracking the change track of Tm of each peak along with beta, so that respective ET is calculated respectively. According to the method, the dependence on the current peak shape is remarkably reduced, the identification and analysis capability of overlapped peaks is improved, and whether the relaxation process has single activation energy or not can be judged, so that more reliable and more accurate characterization of the trap energy level is realized.

The invention discloses a method for realizing multi-channel excitation by using dual-wavelength to excite a dual-microwave field, and relates to a technical scheme of forming dual-wavelength excitation-dual-microwave expansion Rydberg atom working frequency points by combining dual-color optical frequency hopping and a microwave expansion frequency point method. The double-color light frequency hopping technology is used for selecting an initial working frequency point, and the excitation energy level corresponding to the single color light is further finely regulated, controlled and expanded through the double microwave fields. In other words, on a quantum state corresponding to a single color light excitation state, double microwaves interact with an atomic energy level to further generate a plurality of different microwave transition resonance states, so that a plurality of available sub-frequency points can be derived under each light frequency point, the rapid frequency point switching capability is improved, and the frequency point switching efficiency is improved. The problems of low frequency resource utilization rate, difficulty in frequency point switching and the like existing in a current Rydberg atom excitation scheme are solved.

This invention relates to the field of current measurement technology and discloses a method and system for improving the accuracy of NV center current measurement in diamond. The method includes: applying an axial magnetic field outside the diamond sample; comparing the energy level difference between two characteristic states with the target spin; determining whether energy level anti-crossing exists based on the comparison result; determining the fluorescence intensity based on the energy level anti-crossing; determining a normalized fluorescence signal based on the initial fluorescence signal and the target fluorescence signal; determining the coupling relationship between the magnetic field and fluorescence intensity based on the fluorescence intensity, the normalized fluorescence signal, and the placement probability; applying a bias magnetic field opposite to the axial magnetic field based on the open-loop transfer function and the microwave frequency; modulating the measurement microwave frequency with a sine wave; and measuring the NV center current based on the Fourier coefficients, the adjusted signal-to-noise ratio, and the bias magnetic field. This invention improves the accuracy of current measurement.

The invention discloses a method, a device and equipment for confirming molecular vibration activation energy, a medium and a product, and relates to the technical field of thermal vibration activation. According to the molecular vibration activation energy confirmation method, the energy distribution and the frequency of molecular vibration in each vibration mode and the number distribution of molecular vibration on each vibration energy level in each vibration mode are obtained, and the vibration activation intensity on each vibration energy level in each vibration mode is determined according to the energy distribution and the number distribution. And finally, determining the overall vibration activation energy of the molecules based on the vibration activation intensity and frequency. The overall vibration activation energy of the molecules is determined on the basis of the vibration activation intensity and frequency by defining the vibration activation intensity positively correlated with the ability of vibration activation (transition of the molecules from a vibration level with a vibration quantum number of 0 to a vibration level with a vibration quantum number of greater than or equal to 1) in a vibration mode for the first time.

According to an embodiment, a plasma processing system is proposed. The plasma processing system includes a processing chamber for plasma; a two-chambered pumping block linked to the chamber through an orifice that creates a particle beam via a pressure difference, with the upper pressure regulated by a connected vacuum pump; a detector stage attached to the pumping block through another orifice and connectable to a vacuum pump to guide the beam through a third orifice; a mass spectrometer connected to the detector stage via the third orifice, featuring an ionizer that ionizes the beam's species by cycling through energy levels in multiple steps; and a shutter installed in the pumping block's path of the particle beam, designed to operate at each energy level step.

A system, method, diagnostic and container delivery system for manipulating a target, by manipulating with the quantum coherence of the target. The method includes identifying intrinsic parameters of the target and determining target-tuned design factors based at least partially on the intrinsic parameters. Target-tuned electrons and respective associate fields are generated based in part on the target-tuned design factor. The target-tuned electrons are transformed the from an unquantized state into target-tuned artificial atoms with quantized energy levels. The method may include preparing a container to carry the unquantized target-tuned electrons, the container being composed of superconductor quantum dots. The unquantized target-tuned electrons are transferred to the container to form the target-tuned artificial atoms having quantized target-tuned electrons, which may be delivered to the target as a manipulating agent. Alternatively, the unquantized target-tuned electrons may be delivered directly to the subject.

The present disclosure relates to a method, quantum circuit, and computer-readable memory for hyperpolarization. Illustratively, the method for the system, which system includes a target system, an auxiliary system, and a reset system each with their own energy levels, includes applying one or more operations to increase the probability of the target system energy levels in lower energy state, and to reduce the probability of the target system energy levels that have the target element in the higher energy state.