Method and device for simulating quantum circuit

A quantum circuit and quantum gate technology, applied in the field of quantum computing, can solve problems such as it is difficult to simulate quantum circuits, and achieve the effect of optimizing the operation sequence, reducing the amount of simulation operations, and improving efficiency

Active Publication Date: 2021-11-30
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Since the length of the column vector describing the quantum state grows exponentially with the corresponding number of bits, it is difficult for a classical computer to simulate a large-scale quantum circuit with multiple bits
Existing quantum circuit simulators can only simulate calculations of dozens of qubits at most

Method used

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  • Method and device for simulating quantum circuit
  • Method and device for simulating quantum circuit
  • Method and device for simulating quantum circuit

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Embodiment Construction

[0026] Exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present disclosure to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0027] In the present disclosure, unless otherwise stated, using the terms "first", "second", etc. to describe various elements is not intended to limit the positional relationship, temporal relationship or importance relationship of these elements, and such terms are only used for Distinguishes one element from another. In some examples, the first element and the second ...

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Abstract

The invention provides a method and device for simulating a quantum circuit, and relates to the field of quantum computing. According to the implementation scheme, the method comprises the steps of obtaining quantum gate parameters of each quantum gate in a quantum circuit to be simulated; generating a sub-measurement mode equivalent to the quantum gate based on the quantum gate parameter, wherein the sub-measurement mode comprises a plurality of operation commands; combining the sub-measurement modes equivalent to each quantum gate to obtain a total measurement mode equivalent to the whole quantum circuit to be simulated; and sorting the operation sequence of the operation commands of the sub-measurement modes in the total measurement mode to obtain the sorted total measurement mode as a simulation result of the quantum circuit to be simulated. According to the scheme, a quantum circuit used for quantum calculation is converted into an equivalent measurement mode according to a one-way quantum computer calculation model, direct analog calculation of the quantum circuit can be avoided, and therefore the analog calculation amount of a classic computer is greatly reduced.

Description

technical field [0001] The present disclosure relates to the field of quantum computing, in particular to a method and device for simulating a quantum circuit, a method and device for quantum computing, electronic equipment, computer storage media and computer program products. Background technique [0002] Quantum computing is a new type of computing mode that follows the laws of quantum mechanics to regulate quantum information units for computing. The theoretical model of a universal quantum computer is a universal Turing machine reinterpreted with the laws of quantum mechanics. In terms of computing efficiency, due to the superposition of quantum mechanics, some known quantum algorithms are faster than traditional general-purpose computers in processing problems. [0003] In the prior art, quantum evolution in quantum computing is mainly achieved by building quantum circuits. Then use a classical computer to directly simulate the quantum circuit. Since the length of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06N10/00
CPCG06N10/00
Inventor 方堃
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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