10 results about "Unpaired electron" patented technology

The invention relates to the technical field of quantum computing and molecular electronic devices, in particular to a probabilistic bit device based on polyfluoroaryl methyl free radicals and a preparation method of the probabilistic bit device. According to the probabilistic bit device, the coupling efficiency of molecules and electrodes is improved by virtue of the characteristic that the paramagnetic unpaired electron spin state of tri (polyfluoroaryl) methyl free radical molecules can be used as a random expansion physical entropy source and high electronegativity and stability formed by modification of a plurality of strong electron-withdrawing fluorine atoms in the molecules. During the operation period of the device, the spin fluctuation can efficiently regulate and control tunneling current passing through molecules, promote random conversion between output high and low current states, show excellent random binary fluctuation characteristics, and simultaneously have high sensitivity and long coherence time. Compared with the prior art, the device has remarkable advantages in the aspects of device stability, energy efficiency ratio and external field controllability. The preparation method is simple and convenient to operate, mild in reaction condition and beneficial to large-scale production.

The invention discloses a high-spin-state transition metal defect type metal oxide composite electrocatalyst, a preparation method of the high-spin-state transition metal defect type metal oxide composite electrocatalyst and application of the high-spin-state transition metal defect type metal oxide composite electrocatalyst in an alkali metal-sulfur battery, and belongs to the technical field of electrochemical energy storage. And a high spin transition metal atom anchored to a defect region or adjacent region of the metal oxide support having the engineered defect; high-spin-state transition metal atoms are induced or stabilized in a high-spin state by forming an unsaturated coordination environment, modifying a carrier electronic structure or introducing a specific coordination group. The defect site of the carrier stably anchors the transition metal atoms in the high spin state, and the high spin state of the transition metal is induced or stabilized through strong carrier-metal interaction. And unpaired electrons in a high-spin-state transition metal atom d orbit and polysulfide form orbital hybridization to enhance chemical adsorption. High-spin-state electrons are easy to transfer, electron transmission is accelerated, a polysulfide conversion path energy barrier is reduced, and rapid and reversible conversion of sulfur species is promoted.

There is provided a method for performing one or more quantum operations on a quantum processor. Wherein the quantum processor comprises a plurality of quantum dots in a semiconductor substrate and at least a subset of the quantum dots being multi-dopant quantum dots. Further each multi-dopant quantum dot comprises two or more dopant atoms and at least one of the plurality of quantum dots confining an unpaired electron / hole. The method comprises performing the one or more quantum operations on the quantum processor using one or more operation modes including: using the spin of the unpaired electron / hole of a quantum dot as a data qubit; using a multi-dopant quantum dot as an error corrected logical qubit; using at least one nuclear spin of a dopant atom of a multi-dopant quantum dot as a data qubit; or using the spin of the unpaired electron / hole and at least one nuclear spin of a dopant atom of a multi-dopant quantum dot as data qubits.

A conducting or semiconducting salt, wherein the salt formula unit is formed from n monovalent cations, or from n / 3 trivalent cations, wherein 2<n<4, and an anion having a charge k, wherein -4<k<-2, such that a neutral formula unit is formed with the n monovalent cations or the n / 3 trivalent cations, wherein the anion is planar and when in isolation has at least one unpaired electron and contains frontier π-orbitals, and wherein the anions in one direction of a crystal of the salt are aligned face-to-face.

Disclosed is a quantum processing system and a method of operating the quantum processing system. The system includes a first qubit including a first unpaired electron bound to a first donor cluster pair embedded in a semiconductor substrate and a distance from a semiconductor surface, each donor cluster of the first donor cluster pair including at least one donor atom. The system also includes a second qubit including a second unpaired electron bound to a second donor cluster pair embedded in the semiconductor substrate and a distance from the semiconductor surface, each donor cluster of the second donor cluster pair including at least one donor atom. Further, a microwave resonator is positioned between the first qubit and the second qubit, wherein a first end of the microwave resonator is coupled to the first qubit and a second end of the microwave resonator is coupled to the second qubit. Photons of the microwave resonator couple the first qubit and the second qubit.

The present application relates to the technical field of probabilistic bit device, and particularly relates to a single-molecule probabilistic bit device based on external circuit coupling, a preparation method and application, the single-molecule probabilistic bit device comprises a single-molecule junction formed by a graphene electrode pair and a probabilistic bit functional group, and a plurality of rigid benzene rings in a triphenylmethyl skeleton in the single-molecule junction realize high delocalization of unpaired electrons through a conjugated structure, effectively weakening the coupling effect between spin and molecular vibration, conformational fluctuation, inhibiting the rapid decoherence process caused by phonon scattering from the molecular structure level, so that the spin state can still maintain a limited coherence lifetime at room temperature, and the basic requirement of the device on the spin state holding time can be met.The device has randomness, controllability and scalability at the circuit level, and provides a hardware basis for constructing a brain-like probabilistic computing network.The preparation method provided by the present application is simple in process and is conducive to large-scale production.

The present application relates to the technical field of quantum computing and molecular electronic devices, and particularly relates to a probability bit device based on a polyfluoro aryl methyl radical and a preparation method thereof. The probability bit device can be used as a random fluctuation physical entropy source by virtue of the characteristic that the unpaired electron spin state of the paramagnetic three (polyfluoro aryl) methyl radical molecule can be used as a random fluctuation physical entropy source, and the high electronegativity and stability formed by the modification of multiple strong electron-withdrawing fluorine atoms in the molecule improve the coupling efficiency of the molecule and the electrode. During the operation of the device, the spin fluctuation can efficiently regulate the tunneling current through the molecule, promote the random transition between the high and low current states of the output, and exhibit excellent random binary fluctuation characteristics, while having high sensitivity and long coherence time. Compared with the prior art, the present application has significant advantages in device stability, energy efficiency ratio and external field controllability. The preparation method is simple in operation and mild in reaction conditions, and is conducive to large-scale production.

The invention relates to the technical field of casting internal micro-defect detection, and discloses a large injection molding machine template casting internal micro-defect nondestructive detection method, which comprises: establishing a three-dimensional steady-state gradient magnetic field in a detection area to determine a space mapping rule; injecting an acoustic carrier signal into the detection area and applying an alternating perturbation magnetic field to induce unpaired electrons at the defect to generate a dynamic Zeeman split resonance response; energy absorption components synchronously oscillating along with an alternating perturbation magnetic field in transmission sound waves penetrating through the casting are extracted through orthogonal phase-locked demodulation, a sound spin resonance signal is determined, and static background noise generated by polycrystalline metal grain boundary scattering is physically inhibited; according to the method, the spatial position coordinates of the defects are determined according to the acoustic spin resonance signals in combination with a mapping rule, orthogonal separation of defect signals and structural noise is achieved through magnetic response characteristics, and the problem of capturing of the micro defects in the heavy polycrystalline metal is solved.

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.

Aspects of the present disclosure provide a quantum processing device comprising: a nuclear spin register comprising at least two nuclear spin qubits; at least one unpaired electron coupled to the nuclear spin register; and a control system configured to: control and / or read out the electron spin qubits; control and / or read out nuclear spin qubits; and reduce errors arising from dipole coupling between the nuclear spin qubits and / or between electron spin and nuclear spin.