期刊
PHYSICAL REVIEW B
卷 104, 期 12, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.104.L121410
关键词
-
资金
- Australian Research Council Centre of Excellence for Engineered Quantum Systems (EQUS) [CE170100009]
Researchers theoretically report the emergence of Z(4) parafermion edge modes in a periodically driven spinful superconducting chain with a modest fermionic Hubbard interaction. These exotic quasiparticles can be analytically and exactly derived at special parameter values, and show strong numerical evidence of robustness against variations in parameter values and spatial disorder. This proposal offers a pathway towards realizing parafermions without the need for fractional quantum Hall systems or complicated interactions.
We theoretically report the emergence of Z(4) parafermion edge modes in a periodically driven spinful superconducting chain with a modest fermionic Hubbard interaction. These parafermion edge modes represent +/-pi/(2T) quasienergy excitations (T being the driving period), which have no static counterpart and arise from the interplay between an interaction effect and periodic driving. At special parameter values, these exotic quasiparticles can be analytically and exactly derived. Strong numerical evidence of their robustness against variations in parameter values and spatial disorder is further presented. Our proposal offers a route toward realizing parafermions without fractional quantum Hall systems or complicated interactions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据