Quantum information spreading in random spin chains with topological order
Quantum information spreading in random spin chains with topological order
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量子信息在具有拓扑顺序的随机自旋链中传播
DOI:
10.1103/physrevb.106.104204
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发表时间:
2022
影响因子:
3.7
通讯作者:
Ichinose Ikuo
中科院分区:
文献类型:
--
作者:
Orito Takahiro;Kuno Yoshihito;Ichinose Ikuo
Quantum information spreading and scrambling in many-body systems attract interest these days. Tripartite mutual information (TMI) based on operator-based entanglement entropy (EE) is an efficient tool for measuring them. In this paper, we study random spin chains that exhibit phase transitions accompanying nontrivial changes in topological properties. In their phase diagrams, there are two types of many-body localized (MBL) states and one thermalized regime intervening these two MBL states. Quench dynamics of the EE and TMI display interesting behaviors, providing an essential perspective concerning the encoding of quantum information. In particular, one of the models is self-dual, but information spreading measured by the TMI does not respect this self-duality. We investigate this phenomenon from the viewpoint of spatial structure of the stabilizers. In general, we find that knowledge of the phase diagram corresponding to the qubit system is useful for understanding the nature of quantum information spreading in that system. The connection between the present paper and random circuit of projective measurements and also topological Majorana quantum memory is remarked upon.
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DOI:
10.1073/pnas.1819316116
发表时间:
2018-08
期刊:
Proceedings of the National Academy of Sciences
影响因子:
--
作者:
Everard van Nieuwenburg;Y. Baum;G. Refael
通讯作者:
Everard van Nieuwenburg;Y. Baum;G. Refael
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
W. Son;L. Amico;R. Fazio;A. Hamma;S. Pascazio;V. Vedral
通讯作者:
V. Vedral
DOI:
10.1007/978-3-030-41265-4
发表时间:
2020-05
期刊:
Graduate Texts in Physics
影响因子:
--
作者:
H. Tasaki
通讯作者:
H. Tasaki
影响因子:
3.3
作者:
Kuno Yoshihito;Orito Takahiro;Ichinose Ikuo
通讯作者:
Ichinose Ikuo
DOI:
10.1088/1742-5468/aa73f0
发表时间:
2017-06-01
影响因子:
2.4
作者:
Kemp, Jack;Yao, Norman Y.;Fendley, Paul
通讯作者:
Fendley, Paul