12 results about "Electronic spin" patented technology

A diamond magneto-optical sensor includes: a diamond that includes a color center with an electronic spin and is irradiated with excitation light, and an irradiation unit that irradiates the diamond with the excitation light of the color center and electromagnetic waves for magnetic resonance, wherein the irradiation unit receives modulated light having been subjected to amplitude modulation, and a modulation frequency of the modulated light is included in a microwave frequency band.

An embodiment provides for distribution of an entangled state (e.g., GHZ state, etc.) through use of an optical channel coupled with electron-nuclear memories, such as silicon vacancy quantum memories, and near-deterministic Bell measurements between electronic spins. The embodiment provides electron-nuclear spin swapping and deterministically generates electron-electron entanglement. Nuclear spins can be used for memories, and repeated Bell measurements can be used to generate entanglements between electrons. Thus, the embodiment obtains a deterministic GHZ projection and prepares the GHZ state in fixed circuit depth.

The application discloses a kind of method, device and medium for calculating the energy of target system using quantum chemistry, method includes: first determining target system information, target system information includes the Hamiltonian of target system, electronic information and electronic spin-orbit information, based on electronic information and electronic spin-orbit information, obtain the Hartree Fock state of fermion form of target system, by pre-setting coding mode, the Hartree Fock state of fermion form is encoded to qubit, and the quantum state of Pauli operator form is obtained, finally, according to the Hamiltonian of target system, and based on the quantum state of Pauli operator form and evolution wave function, the energy of target system is calculated, it can support the realization of quantum chemistry simulation to calculate the energy of target system, improve the calculation speed and calculation accuracy, promote the further development of quantum chemistry simulation application.

The application relates to an error correction method and device of an NV color center Ising machine, electronic equipment and a readable medium. The method comprises the following steps: mapping an electronic spin state of an NV color center to a plurality of nuclear spins for redundant encoding; obtaining readout results of the plurality of nuclear spins; determining a corrected spin state based on a plurality of the readout results through a majority voting rule; and dynamically adjusting a control pulse parameter according to a statistical deviation in the error correction process. The application uses naturally existing nuclear spins around the NV color center as a redundant carrier, and can correct a flip error in a readout process without additional hardware resources, thereby significantly improving the overall fidelity of the Ising machine. Furthermore, the application suppresses the accumulation of systematic errors by dynamically adjusting the control pulse parameter, thereby solving the problems of error accumulation and fidelity decline in the measurement feedback iteration process of the NV color center Ising machine, and a large resource overhead of general quantum error correction.

The invention discloses a main magnetic field error suppression method of a nuclear magnetic resonance atomic gyroscope, which comprises the following steps: constructing a nuclear magnetic resonance atomic gyroscope inertial measurement system, applying a main magnetic field, a carrier magnetic field and pumping light in a z-axis direction, and applying detection light and a nucleon resonance magnetic field in an x-axis direction, enabling the nuclear magnetic resonance atomic gyroscope inertial measurement system to be in a stable working state; carrying out electron frequency sweeping to obtain electron spin relaxation time; carrying out closed-loop processing on the nucleons, and carrying out precession frequency measurement on the double nucleons; according to the electron spin relaxation time and in combination with the parameters such as the nucleon precession frequency, an optimized carrier signal frequency is calculated through a carrier frequency selection formula provided by the invention; based on the optimized carrier signal frequency, accurate measurement is carried out on the nuclear precession frequency, and angular velocity information is obtained. By selecting the optimal carrier signal frequency, the nuclear precession frequency detection error caused by the main magnetic field fluctuation error is compensated, and the measurement error of the nuclear magnetic resonance atomic gyroscope is reduced.

The application discloses an electrolytic water hydrogen synthesis green ammonia coupling system and method based on external magnetic field regulation, and belongs to the technical field of green ammonia synthesis. Based on the effect of an external magnetic field, the electronic spin state regulation of ferromagnetic transition metals in the electrolytic water and ammonia synthesis system is promoted, the ferromagnetic-paramagnetic phase transition of the catalyst is realized, the catalytic speed limit is broken, the catalytic activity of the electrolytic water and ammonia synthesis reaction process is improved, the hydrogen and ammonia production efficiency is improved, and the energy saving and consumption reduction of green ammonia synthesis under mild conditions are facilitated. Further, the electrolytic water and ammonia synthesis heat exchanger pipeline design is optimized, the ammonia synthesis waste heat is used for assisting the electrolytic water alkali liquor circulation system heating, the electrolytic water cooling water secondary utilization assists the cooling of the ammonia synthesis tower outlet gas, and a recycling system is jointly built to realize the deep coupling of the electrolytic water and ammonia synthesis process.

The present invention relates generally to a novel material comprising electron spins, in particular to a method of preparing such a material to spatially separate electron spins from oxygen and moisture in the atmosphere.

An organic electroluminescent device comprising: a first electrode, a second electrode, and an organic emissive layer (EML) comprising: a metal-organic host compound MOH, and an organic emitter compound OE, and wherein the metal-organic host compound MOH has a total spin of > = 1 / 2 and / or has one or more unpaired electrons, the lowest electron excited state in the emissive layer EML is the exciplex EXMOH / OE formed by a single electron transfer between MOH and OE, the first excited triplet energy T1OE of the organic emitter resonates with or is higher than the exciplex energy EEEX: T1OE > = EEEX; the energy difference between the emitted first excitation singlet S1OE and the energy of the exciplex is less than 0.4 eV: S1OE-EEEX < = 0.4 eV.

The invention discloses a gadolinium-doped ruthenium oxide material with high-spin-state ruthenium as well as a preparation method and application of the gadolinium-doped ruthenium oxide material. The lanthanide gadolinium is accurately introduced to regulate the electronic structure of ruthenium oxide, the electron spin state of the ruthenium oxide active site is changed, electron transport kinetics is optimized, the catalytic activity is remarkably improved, the ruthenium site is induced to be converted into the high spin state from the low spin state through super-exchange interaction between the lanthanide gadolinium and ruthenium atoms, and the catalytic activity is improved. According to the method, the spin states of reactants and intermediates are better matched, the electron transfer process is optimized, the reaction energy barrier is reduced, and the phenomenon that traditional ruthenium oxide is prone to over-oxidation dissolution under the acidic condition is overcome. Compared with undoped ruthenium oxide, the high-spin-state gadolinium-doped ruthenium oxide material disclosed by the invention shows lower overpotential, smaller Tafel slope and excellent long-cycle stability in acidic OER, and is suitable for preparing a high-performance proton exchange membrane electrolytic cell anode catalyst.

An organic electroluminescent device that comprises a first electrode, a second electrode, and an organic emission layer EML comprising: one metal-organic host compound MOH, and one organic emitter compound OE. The metal-organic host compound MOH has a total spin of ≥½ and / or possessing one or more unpaired electrons. The lowest electronically excited state within the emission layer EML is an exciplex EXMOH / OE formed by a single electron transfer between the MOH and the OE. The energy of the first excited triplet state of the organic emitter T1OE is resonant or higher as compared to the energy of the Exciplex EEEX: T1OE≥EEEX. The energy difference of the emitting first excited singlet state S1OE and the energy of the exciplex is less than 0.4 eV: S1OE−EEEX≤0.4 eV.

The application discloses an in-situ chemical reaction imaging method and application, comprising the following steps: constructing a diamond-containing chemical reaction-quantum sensing integrated sample pool and corresponding imaging configuration required for reaction; before the reaction starts, a continuous adjustable magnetic field is applied to the diamond, and a certain axis of the diamond NV color center is aligned with the magnetic field; based on a basic pulse sequence, microwave and laser are output to initialize and control the electronic spin state of the diamond NV color center, and the intrinsic property of the diamond is measured; when the reaction starts, the diamond NV color center is excited and controlled according to the measurement pulse sequence corresponding to the physical quantity to be measured in the control strategy, so that the NV color center electron spin evolves with the environment physical field; the fluorescence intensity change of the diamond NV color center is synchronously and dynamically monitored in real time during the reaction process; data processing and image reconstruction are carried out based on the fluorescence intensity change; and the chemical reaction process is monitored and imaged in real time in-situ with the advantages of a large field of view, high sensitivity and high space-time resolution.

An integrated system (201) for quantum computing is provided, comprising at least: at least one semiconductor spin qubit (210); a feed line (240) configured to function as an electronic spin resonant (ESR) antenna for control of the at least one qubit; at least one resonator (220_j); and a ground plane (250) shared by the feed line and the at least one resonator. The at least one resonator is capacitively coupled to the feed line and configured for readout of the at least one qubit via the feed line. The feed line and the at least one resonator are arranged in adjacent layers separated at least by a dielectric. A corresponding method for performing quantum computing using such an integrated system is also provided.