量子电子学报2026，Vol.43Issue(2)：297-318,22.DOI:10.3969/j.issn.1007-5461.2026.02.012
电离辐射对超导量子比特的影响及应对策略
Impact of ionizing radiation on superconducting qubits and mitigation strategies
摘要
Abstract
Superconducting quantum computing is one of the mainstream technical routes for implementing quantum computing.Extending the coherence time of superconducting qubits can enhance the accuracy of quantum computation and increase the depth of quantum circuits.Although the coherence time of superconducting qubits has been increased from less than 1 ns in 1999 to over 1 ms today,superconducting qubits are still far from practical utility.Therefore,research on the coherence time of superconducting qubits is still very important.Recent studies have found that ionizing radiation causes decoherence with associated errors for superconducting qubits.This paper first systematically summarizes the effects of ionizing radiation on superconducting qubits.Ionizing radiation can lead to an increase in the density of nonequilibrium quasiparticles and two-level defects in superconducting quantum chips,and these excess nonequilibrium quasiparticles and two-level defects can directly affect the coherence time of superconducting qubits.Subsequently,four strategies for reducing the effect of ionizing radiation are discussed in detail.Finally,the future research directions in this field are envisioned.关键词
超导量子计算/超导量子比特/电离辐射/相干时间Key words
superconducting quantum computing/superconducting quantum qubits/ionizing radiation/coherence time分类
数理科学引用本文复制引用
冯薛飞,刘佳宁,樊凯哲,杨天,刘星江,袁本政,何昊冉,王卫龙..电离辐射对超导量子比特的影响及应对策略[J].量子电子学报,2026,43(2):297-318,22.基金项目
河南省重大科技专项(221100210400) （221100210400）
