Quench dynamics in the aubry–andré–harper model with p-wave superconductivity
文献类型：期刊论文
| 作者 | Zeng,Qi-Bo1; Chen,Shu2,3; Lü,Rong1,3 |
| 刊名 | New journal of physics
 |
| 出版日期 | 2018-05-04 |
| 卷号 | 20期号:5 |
| ISSN号 | 1367-2630 |
| 关键词 | Quench dynamics Aubry–andré–harper model P-wave superconductivity Entanglement entropy Loschmidt echo |
| DOI | 10.1088/1367-2630/aabe39 |
| 英文摘要 | Abstract the anderson localization phase transition in the aubry–andré–harper (aah) model with p-wave superconducting (sc) pairing is numerically investigated by suddenly changing the on-site potential from zero to various finite values which fall into the extended, critical and localized phase regimes shown in this model. the time evolution of entanglement entropy (ee), mean width of wave packets and loschmidt echo of the system exhibit distinct but consistent dynamical signatures in those three phases. specifically, the ee grows as a power function of time with the exponent of which varies in the extended phase but keeps almost unchanged in the critical phase for different quench parameters. however, if the system is in the localized phase after a quench, the ee grows much slower and will soon get saturated. the time-dependent width of wave packets in the system shows similar behaviors as the ee. in addition, from the perspective of the dynamical phase transition, we find that the loschmidt echo oscillates and always keeps finite when the system is quenched in the extended phase. in contrast, in the critical or localized phase, the echo will reach to zero at some time intervals or will decay almost to zero after a long-time evolution. the universal features of these quantities in the critical phase of the system with various sc pairing amplitudes are also observed. |
| 语种 | 英语 |
| 出版者 | IOP Publishing |
| WOS记录号 | IOP:1367-2630-20-5-AABE39 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373995 |
| 专题 | 物理研究所 |
| 作者单位 | 1.Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing 100084, People's Republic of China 2.Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China 3.Collaborative Innovation Center of Quantum Matter, Beijing, People's Republic of China |
| 推荐引用方式 GB/T 7714 | Zeng,Qi-Bo,Chen,Shu,Lü,Rong. Quench dynamics in the aubry–andré–harper model with p-wave superconductivity[J]. New journal of physics,2018,20(5). |
| APA | Zeng,Qi-Bo,Chen,Shu,&Lü,Rong.(2018).Quench dynamics in the aubry–andré–harper model with p-wave superconductivity.New journal of physics,20(5). |
| MLA | Zeng,Qi-Bo,et al."Quench dynamics in the aubry–andré–harper model with p-wave superconductivity".New journal of physics 20.5(2018). |
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来源：物理研究所
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