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	Realizing a topological transition in a non-Hermitian quantum walk with circuit QED
	Huang, Yizhou1; Yin, Zhang-qi1; Yang, W. L.2
刊名	PHYSICAL REVIEW A
	2016-08-03
卷号	94期号:2
英文摘要	We extend the non-Hermitian one-dimensional quantum walk model [Phys. Rev. Lett. 102, 065703 (2009)] by taking the dephasing effect into account. We prove that the feature of topological transition does not change even when dephasing between the sites within units is present. The potential experimental observation of our theoretical results in the circuit QED system consisting of superconducting qubit coupled to a superconducting resonator mode is discussed and numerically simulated. The results clearly show a topological transition in quantum walk and display the robustness of such a system to the decay and dephasing of qubits. We also discuss how to extend this model to higher dimension in the circuit QED system.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Optics ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]	Optics ; Physics
关键词[WOS]	PARITY-TIME SYMMETRY ; OPTICS ; HAMILTONIANS
收录类别	SCI
语种	英语
WOS记录号	WOS:000380947600003
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/9577]
专题	武汉物理与数学研究所_原子分子光物理研究部
作者单位	1.Tsinghua Univ, Ctr Quantum Informat, Inst Interdisciplinary Informat Sci, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Huang, Yizhou,Yin, Zhang-qi,Yang, W. L.. Realizing a topological transition in a non-Hermitian quantum walk with circuit QED[J]. PHYSICAL REVIEW A,2016,94(2).
APA	Huang, Yizhou,Yin, Zhang-qi,&Yang, W. L..(2016).Realizing a topological transition in a non-Hermitian quantum walk with circuit QED.PHYSICAL REVIEW A,94(2).
MLA	Huang, Yizhou,et al."Realizing a topological transition in a non-Hermitian quantum walk with circuit QED".PHYSICAL REVIEW A 94.2(2016).

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