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Suppression of Crosstalk in Quantum Circuit Based on Instruction Exchange Rules and Duration

Crosstalk is the primary source of noise in quantum computing equipment. The parallel execution of multiple instructions in quantum computation causes crosstalk, which causes coupling between signal lines and mutual inductance and capacitance between signal lines, destroying the quantum state and ca...

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Autores principales: Guan, Zhijin, Liu, Renjie, Cheng, Xueyun, Feng, Shiguang, Zhu, Pengcheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10297105/
https://www.ncbi.nlm.nih.gov/pubmed/37372199
http://dx.doi.org/10.3390/e25060855
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author Guan, Zhijin
Liu, Renjie
Cheng, Xueyun
Feng, Shiguang
Zhu, Pengcheng
author_facet Guan, Zhijin
Liu, Renjie
Cheng, Xueyun
Feng, Shiguang
Zhu, Pengcheng
author_sort Guan, Zhijin
collection PubMed
description Crosstalk is the primary source of noise in quantum computing equipment. The parallel execution of multiple instructions in quantum computation causes crosstalk, which causes coupling between signal lines and mutual inductance and capacitance between signal lines, destroying the quantum state and causing the program to fail to execute correctly. Overcoming crosstalk is a critical prerequisite for quantum error correction and large-scale fault-tolerant quantum computing. This paper provides an approach for suppressing crosstalk in quantum computers based on multiple instruction exchange rules and duration. Firstly, for the majority of the quantum gates that can be executed on quantum computing devices, a multiple instruction exchange rule is proposed. The multiple instruction exchange rule reorders quantum gates in quantum circuits and separates double quantum gates with high crosstalk on quantum circuits. Then, time stakes are inserted based on the duration of different quantum gates, and quantum gates with high crosstalk are carefully separated in the process of quantum circuit execution by quantum computing equipment to reduce the influence of crosstalk on circuit fidelity. Several benchmark experiments verify the proposed method’s effectiveness. In comparison to previous techniques, the proposed method improves fidelity by 15.97% on average.
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spelling pubmed-102971052023-06-28 Suppression of Crosstalk in Quantum Circuit Based on Instruction Exchange Rules and Duration Guan, Zhijin Liu, Renjie Cheng, Xueyun Feng, Shiguang Zhu, Pengcheng Entropy (Basel) Article Crosstalk is the primary source of noise in quantum computing equipment. The parallel execution of multiple instructions in quantum computation causes crosstalk, which causes coupling between signal lines and mutual inductance and capacitance between signal lines, destroying the quantum state and causing the program to fail to execute correctly. Overcoming crosstalk is a critical prerequisite for quantum error correction and large-scale fault-tolerant quantum computing. This paper provides an approach for suppressing crosstalk in quantum computers based on multiple instruction exchange rules and duration. Firstly, for the majority of the quantum gates that can be executed on quantum computing devices, a multiple instruction exchange rule is proposed. The multiple instruction exchange rule reorders quantum gates in quantum circuits and separates double quantum gates with high crosstalk on quantum circuits. Then, time stakes are inserted based on the duration of different quantum gates, and quantum gates with high crosstalk are carefully separated in the process of quantum circuit execution by quantum computing equipment to reduce the influence of crosstalk on circuit fidelity. Several benchmark experiments verify the proposed method’s effectiveness. In comparison to previous techniques, the proposed method improves fidelity by 15.97% on average. MDPI 2023-05-26 /pmc/articles/PMC10297105/ /pubmed/37372199 http://dx.doi.org/10.3390/e25060855 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Guan, Zhijin
Liu, Renjie
Cheng, Xueyun
Feng, Shiguang
Zhu, Pengcheng
Suppression of Crosstalk in Quantum Circuit Based on Instruction Exchange Rules and Duration
title Suppression of Crosstalk in Quantum Circuit Based on Instruction Exchange Rules and Duration
title_full Suppression of Crosstalk in Quantum Circuit Based on Instruction Exchange Rules and Duration
title_fullStr Suppression of Crosstalk in Quantum Circuit Based on Instruction Exchange Rules and Duration
title_full_unstemmed Suppression of Crosstalk in Quantum Circuit Based on Instruction Exchange Rules and Duration
title_short Suppression of Crosstalk in Quantum Circuit Based on Instruction Exchange Rules and Duration
title_sort suppression of crosstalk in quantum circuit based on instruction exchange rules and duration
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10297105/
https://www.ncbi.nlm.nih.gov/pubmed/37372199
http://dx.doi.org/10.3390/e25060855
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