Fidelity susceptibility and topological phase transition of a two-dimensional spin-orbit-coupled Fermi superfluid
文献类型：期刊论文
| 作者 | Luo, XB ; Zhou, KZ ; Liu, WM ; Liang, ZX ; Zhang, ZD |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2014 |
| 卷号 | 89期号:4 |
| ISSN号 | 1050-2947 |
| 通讯作者 | Luo, XB (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China. |
| 中文摘要 | We investigate the fidelity susceptibility (FS) of a two-dimensional spin-orbit-coupled (SOC) Fermi superfluid and the topological phase transition driven by a Zeeman field in the perspective of its ground state wave function. Without Zeeman coupling, FS shows additional features characterizing the BCS-BEC crossover induced by SOC. In the presence of a Zeeman field, the topological phase transition is explored using both FS and the topological invariant. In particular, we obtain the analytical result of the topological invariant which explicitly demonstrates that the topological phase transition corresponds to a sudden change of the ground state wave function. Consequently, FS diverges at the phase transition point with its critical behavior being X proportional to ln vertical bar h-h(c vertical bar) . Based on this observation, we conclude that the topological phase transition can be detected by measuring the momentum distribution in cold atom experiments. |
| 资助信息 | National Natural Science Foundation of China [51331006, 11204321]; National Basic Research Program [2010CB934603]; Ministry of Science and Technology of China; NSF [PHY09-69790, PHY13-05891]; China Scholarship Council |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59476]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Luo, XB,Zhou, KZ,Liu, WM,et al. Fidelity susceptibility and topological phase transition of a two-dimensional spin-orbit-coupled Fermi superfluid[J]. PHYSICAL REVIEW A,2014,89(4). |
| APA | Luo, XB,Zhou, KZ,Liu, WM,Liang, ZX,&Zhang, ZD.(2014).Fidelity susceptibility and topological phase transition of a two-dimensional spin-orbit-coupled Fermi superfluid.PHYSICAL REVIEW A,89(4). |
| MLA | Luo, XB,et al."Fidelity susceptibility and topological phase transition of a two-dimensional spin-orbit-coupled Fermi superfluid".PHYSICAL REVIEW A 89.4(2014). |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。