Optimization method and device for calculating single-bit gate sequence by superconducting quantum, and medium

Abstract

The invention discloses an optimization method and device for calculating single-bit gate sequence by superconducting quantum, and a medium, and is used for solving the problems that the time span ofan input microwave pulse sequence is too long, quantum bit degradation is caused, and the uncertainty of a superconducting quantum calculation result is caused. The method comprises the following steps: determining a rotation operation corresponding to a single-bit gate sequence according to a preset rule; according to each rotation operation corresponding to the single-bit gate sequence, correspondingly rotating the initial state of the quantum bit to obtain a final state of the quantum bit; determining an equivalent rotation axis and an equivalent rotation angle corresponding to the single-bit gate sequence according to the quantum bit initial state and the quantum bit final state; and determining an optimized pulse sequence corresponding to the single-bit gate sequence according to theequivalent rotation axis and the equivalent rotation angle. According to the method, the time span of microwave pulse input corresponding to the single-bit gate sequence can be shortened, so that thesame quantum bit final state can be obtained on the premise that the decoherence degree of quantum bits is minimum, and the calculation accuracy is improved.

Description

technical field [0001] The present application relates to the technical field of superconducting quantum computing, in particular to an optimization method, equipment, and medium for superconducting quantum computing single-bit gate sequences. Background technique [0002] With the development of science and technology, the application of superconducting quantum computing is becoming more and more extensive. [0003] In superconducting quantum computing, single-bit gates typically correspond to microwave pulses with specific parameters. Therefore, when a combination sequence of single-bit gates is used to operate a single qubit, the microwave pulse sequence corresponding to the combination sequence of single-bit gates is usually determined for corresponding operations. [0004] However, due to the limitations of the existing immature microstructure processing technology and incomplete noise shielding, the decoherence time and energy relaxation time of a single qubit are lim...

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Problems solved by technology

[0006] The embodiment of the present application provides an optimization method, equipment, and medium for a superconducting quantum computing single-bit gate sequence, which is used to solve the problem that the time span of the input microwave pulse sequence is too long, which will lead to qubit decoherence and energy relaxation, thereby affecting superconducting quantum computing. The results of conducting quantum computing, and lead to the problem of uncertainty in the results of superconducting quantum computing

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