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Realizing Topological Transition in a Non-Hermitian Quantum Walk with Circuit QED

zqyin 添加于 2016-1-11 09:49 | 1510 次阅读 | 0 个评论

作者
Huang Y, Yin Z-qi, Yang WL
摘要
We extend the non-Hermitian one-dimension quantum walk model [PRL 102, 065703 (2009)] by taking the dephasing effect into account. We prove that the feature of topological transition does not change even the 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 model to higher dimension in the circuit QED system.
详细资料
- 关键词: quant-ph
- 文献种类:手稿
- 期卷页: 2016年
- 日期: 2016-1-8
- 发布方式: arXiv e-prints
- 备注:arXiv:1601.01774v1; 7 pages, 8 figures
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