Floquet Chern vector topological insulators in three dimensions

Fangyuan Ma; Junrong Feng; Feng Li; Ying Wu; Di Zhou

doi:10.1103/PhysRevB.111.134301

Floquet Chern vector topological insulators in three dimensions

Fangyuan Ma
, Junrong Feng
, Feng Li^*
, Ying Wu^*
, Di Zhou^*

^*此作品的通讯作者

物理学院

Beijing Institute of Technology
Nanjing University of Science and Technology

科研成果: 期刊稿件 › 文章 › 同行评审

2 引用（Scopus）

摘要

We theoretically and numerically investigate Chern vector insulators and topological surface states in a three-dimensional lattice, based on phase-delayed temporally periodic interactions within the tight-binding model. These Floquet interactions break time-reversal symmetry, effectively inducing a gauge field analogous to magnetic flux. This gauge field results in Chern numbers in all spatial dimensions, collectively forming the Chern vector. This vector characterizes the topological phases and signifies the emergence of robust surface states. Numerically, we observe these states propagating unidirectionally without backscattering on all open surfaces of the three-dimensional system. Our paper paves the way for breaking time-reversal symmetry and realizing three-dimensional Chern vector topological insulators using temporally periodic Floquet techniques.

源语言	英语
期刊论文编号	134301
期刊	Physical Review B
卷	111
期	13
DOI	https://doi.org/10.1103/PhysRevB.111.134301
出版状态	已出版 - 1 4月 2025

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title = "Floquet Chern vector topological insulators in three dimensions",

abstract = "We theoretically and numerically investigate Chern vector insulators and topological surface states in a three-dimensional lattice, based on phase-delayed temporally periodic interactions within the tight-binding model. These Floquet interactions break time-reversal symmetry, effectively inducing a gauge field analogous to magnetic flux. This gauge field results in Chern numbers in all spatial dimensions, collectively forming the Chern vector. This vector characterizes the topological phases and signifies the emergence of robust surface states. Numerically, we observe these states propagating unidirectionally without backscattering on all open surfaces of the three-dimensional system. Our paper paves the way for breaking time-reversal symmetry and realizing three-dimensional Chern vector topological insulators using temporally periodic Floquet techniques.",

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AU - Ma, Fangyuan

AU - Feng, Junrong

AU - Li, Feng

AU - Wu, Ying

AU - Zhou, Di

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N2 - We theoretically and numerically investigate Chern vector insulators and topological surface states in a three-dimensional lattice, based on phase-delayed temporally periodic interactions within the tight-binding model. These Floquet interactions break time-reversal symmetry, effectively inducing a gauge field analogous to magnetic flux. This gauge field results in Chern numbers in all spatial dimensions, collectively forming the Chern vector. This vector characterizes the topological phases and signifies the emergence of robust surface states. Numerically, we observe these states propagating unidirectionally without backscattering on all open surfaces of the three-dimensional system. Our paper paves the way for breaking time-reversal symmetry and realizing three-dimensional Chern vector topological insulators using temporally periodic Floquet techniques.

AB - We theoretically and numerically investigate Chern vector insulators and topological surface states in a three-dimensional lattice, based on phase-delayed temporally periodic interactions within the tight-binding model. These Floquet interactions break time-reversal symmetry, effectively inducing a gauge field analogous to magnetic flux. This gauge field results in Chern numbers in all spatial dimensions, collectively forming the Chern vector. This vector characterizes the topological phases and signifies the emergence of robust surface states. Numerically, we observe these states propagating unidirectionally without backscattering on all open surfaces of the three-dimensional system. Our paper paves the way for breaking time-reversal symmetry and realizing three-dimensional Chern vector topological insulators using temporally periodic Floquet techniques.

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JO - Physical Review B

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Floquet Chern vector topological insulators in three dimensions

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