Effect of counter-rotating term on the entanglement dynamics of two superconducting qubits coupling with quantum oscillators(2个超导比特纠缠动力学的反转动波效应)

QIANLei(钱雷); HEShu(贺树); DUANLiwei(段立伟); CHENQinghu(陈庆虎)

doi:10.3785/j.issn.1008-9497.2015.01.016

Zhejiang Daxue xuebao. Lixue ban (Jan 2015)

Effect of counter-rotating term on the entanglement dynamics of two superconducting qubits coupling with quantum oscillators(2个超导比特纠缠动力学的反转动波效应)

QIANLei(钱雷),
HEShu(贺树),
DUANLiwei(段立伟),
CHENQinghu(陈庆虎)

Affiliations

QIANLei(钱雷): 1.Center for Statistical and Theoretical Condensed Matter Physics, Zhejiang Normal University, Jinhua 321004, Zhejiang Province, China( 1.浙江师范大学海峡两岸统计物理与凝聚态理论研究中心，浙江　金华　321004)
HEShu(贺树): 2.Department of Physics, Zhejiang University, Hangzhou 310027, China( 2.浙江大学物理系，浙江　杭州　310027)
DUANLiwei(段立伟): 2.Department of Physics, Zhejiang University, Hangzhou 310027, China( 2.浙江大学物理系，浙江　杭州　310027)
CHENQinghu(陈庆虎): 1.Center for Statistical and Theoretical Condensed Matter Physics, Zhejiang Normal University, Jinhua 321004, Zhejiang Province, China( 1.浙江师范大学海峡两岸统计物理与凝聚态理论研究中心，浙江　金华　321004)

DOI: https://doi.org/10.3785/j.issn.1008-9497.2015.01.016
Journal volume & issue: Vol. 42, no. 1
pp. 102 – 105

Abstract

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研究了2个无相互作用的与各自量子振子耦合的超导量子比特的纠缠动力学.数值结果证明，在强耦合下，必须考虑非转动波效应，以往的转动波近似不再适用.基于著名的转动波近似解析结果，目前可实验实现的强耦合区域与数值结果存在明显差别.而近年发展起来的转动波近似的一级校正得到的结果更接近于精确数值解.该理论结果可激发基于超导比特的相关实验.

Published in Zhejiang Daxue xuebao. Lixue ban

ISSN: 1008-9497 (Print)
Publisher: Zhejiang University Press
Country of publisher: China
LCC subjects: Science: Mathematics: Instruments and machines: Electronic computers. Computer science; Science: Physics
Website: https://www.zjujournals.com/sci/EN/1008-9497/home.shtml

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