Fidelity susceptibility and long-range correlation in the Kitaev honeycomb model
文献类型：期刊论文
| 作者 | Yang, Shuo; Gu, Shi-Jian; Sun, Chang-Pu ; Lin, Hai-Qing; Gu, SJ , Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
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| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2008 |
| 卷号 | 78期号:1页码:- |
| 关键词 | Quantum Computation Anyons |
| ISSN号 | 1050-2947 |
| 英文摘要 | We study exactly both the ground-state fidelity susceptibility and bond-bond correlation function in the Kitaev honeycomb model. Our results show that the fidelity susceptibility can be used to identify the topological phase transition from a gapped A phase with Abelian anyon excitations to a gapless B phase with non-Abelian anyon excitations. We also find that the bond-bond correlation function decays exponentially in the gapped phase, but algebraically in the gapless phase. For the former case, the correlation length is found to be 1/xi=2 sinh(-1)[root 2J(z)-1/(1-J(z))], which diverges around the critical point J(z)=(1/2)(+). |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000258180300049 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5508]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Gu, SJ , Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Shuo,Gu, Shi-Jian,Sun, Chang-Pu,et al. Fidelity susceptibility and long-range correlation in the Kitaev honeycomb model[J]. PHYSICAL REVIEW A,2008,78(1):-. |
| APA | Yang, Shuo,Gu, Shi-Jian,Sun, Chang-Pu,Lin, Hai-Qing,&Gu, SJ , Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China.(2008).Fidelity susceptibility and long-range correlation in the Kitaev honeycomb model.PHYSICAL REVIEW A,78(1),-. |
| MLA | Yang, Shuo,et al."Fidelity susceptibility and long-range correlation in the Kitaev honeycomb model".PHYSICAL REVIEW A 78.1(2008):-. |
入库方式： OAI收割
来源：理论物理研究所
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