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author:

Wang, H.-Y. (Wang, H.-Y..) [1] | Wu, H.-Z. (Wu, H.-Z..) [2] | Zhao, E. (Zhao, E..) [3] | Wang, R.-Q. (Wang, R.-Q..) [4] | Wang, X.-G. (Wang, X.-G..) [5] | Liu, W.-M. (Liu, W.-M..) [6]

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Abstract:

Time periodic driving can serve as synthetic gauge fields and plays a key role in simulating dynamical topological materials. The periodically driven systems, where different spins (or sublattices) are engaged in the different dynamical driving processes are investigated. It is demonstrated that spin-dependent time-periodical periodic driving can result in shifted topological edge modes with non-zero (nor (Formula presented.)) quasi-energies. Such shifted topological edge modes are not only related to the spin imbalance at each instantaneous time, but also the details of the dynamical driving. Here, it is also illustrated that the spin-dependent time-periodical driving can be conceived as the time-spin coupling, and similar to the static spatial spin-orbit coupling, tuning time-spin coupling parameters can lead to topological phase transitions. Experimental simulations on the spin-dependent time-periodic driving are proposed by shaking optical super-lattices and Raman assisted tunneling. © 2023 Wiley-VCH GmbH.

Keyword:

shifted edge modes spin-dependent time-periodic driving topological phase transitions

Community:

  • [ 1 ] [Wang H.-Y.]Department of Physics, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Wu H.-Z.]Department of Physics, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Zhao E.]Department of Physics and Astronomy, George Mason University, Fairfax, 22030, VA, United States
  • [ 4 ] [Wang R.-Q.]Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
  • [ 5 ] [Wang X.-G.]CAS Key Laboratory of Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China
  • [ 6 ] [Liu W.-M.]Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China

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Source :

Advanced Quantum Technologies

ISSN: 2511-9044

Year: 2023

Issue: 6

Volume: 6

4 . 4

JCR@2023

4 . 4 0 0

JCR@2023

ESI HC Threshold:30

JCR Journal Grade:1

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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