Properties of many-body localization in quasi-disordered Haldane-Shastry model

doi:10.1007/s11128-023-04145-4

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	Properties of many-body localization in quasi-disordered Haldane-Shastry model
	S. Lu, T. T. Hu, H. Ren, X. X. Gu, X. D. Li, Y. W. Gao, Y. N. Zhang, J. M. Hong and Y. T. Li
刊名	Quantum Information Processing
	2023
卷号	22 期号:10 页码:14
ISSN号	1570-0755
DOI	10.1007/s11128-023-04145-4
英文摘要	In this work, through the exact matrix diagonalization, we theoretically study the properties of many-body localization (MBL) in one-dimensional quasi-disordered Haldane-Shastry chains. The Haldane-Shastry (HS) model is an integrable quantum spin chain with long-range interactions, it is the generalized Heisenberg XXX model which only contains the nearest-neighbor two-body interactions. By studying the HS model, it is worth noting that we extend the MBL problem of disordered systems to quasi-disordered many-body systems, where the quasi-disorder is adjustable. Firstly, we use excited-state fidelity to study the phase transition, it is found that the interplay between quasi-disorder and interaction can cause the system to occur the many-body localized phase transition, which is similar to that in the random disordered systems. It shows that quasi-disorder forms and system size both affect the critical point of the MBL phase transition. Secondly, we use local magnetization to further demonstrate that the many-body localized phase transition does occur in the quasi-disordered HS model. We also discuss the effect of periodic driving on the quasi-disordered HS systems. It shows that periodic driving will cause the quasi-disordered systems to occur the phase transition between the ergodic phase and the localized phase.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/67746]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	S. Lu, T. T. Hu, H. Ren, X. X. Gu, X. D. Li, Y. W. Gao, Y. N. Zhang, J. M. Hong and Y. T. Li. Properties of many-body localization in quasi-disordered Haldane-Shastry model[J]. Quantum Information Processing,2023,22(10):14.
APA	S. Lu, T. T. Hu, H. Ren, X. X. Gu, X. D. Li, Y. W. Gao, Y. N. Zhang, J. M. Hong and Y. T. Li.(2023).Properties of many-body localization in quasi-disordered Haldane-Shastry model.Quantum Information Processing,22(10),14.
MLA	S. Lu, T. T. Hu, H. Ren, X. X. Gu, X. D. Li, Y. W. Gao, Y. N. Zhang, J. M. Hong and Y. T. Li."Properties of many-body localization in quasi-disordered Haldane-Shastry model".Quantum Information Processing 22.10(2023):14.