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- W3081507877 endingPage "093041" @default.
- W3081507877 startingPage "093041" @default.
- W3081507877 abstract "Abstract In this paper, we study how to apply a periodic driving field to control stable spin tunneling in a non-Hermitian spin–orbit (SO) coupled bosonic double-well system. By means of a high-frequency approximation, we obtain the analytical Floquet solutions and their associated quasienergies and thus construct the general non-Floquet solutions of the dissipative SO coupled bosonic system. Based on detailed analysis of the Floquet quasienergy spectrum, the profound effect of system parameters and the periodic driving field on the stability of spin-dependent tunneling is investigated analytically and numerically for both balanced and unbalanced gain–loss between two wells. Under balanced gain and loss, we find that the stable spin-flipping tunneling is preferentially suppressed with the increase of gain–loss strength. When the ratio of Zeeman field strength to periodic driving frequency Ω/ ω is even, there is a possibility that continuous stable parameter regions will exist. When Ω/ ω is odd, nevertheless, only discrete stable parameter regions are found. Under unbalanced gain and loss, whether Ω/ ω is even or odd, we can get parametric equilibrium conditions for the existence of stable spin tunneling. The results could be useful for the experiments of controlling stable spin transportation in a non-Hermitian SO coupled system." @default.
- W3081507877 created "2020-09-01" @default.
- W3081507877 creator A5023162221 @default.
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- W3081507877 date "2020-09-01" @default.
- W3081507877 modified "2023-10-17" @default.
- W3081507877 title "Controlling stable tunneling in a non-Hermitian spin–orbit coupled bosonic junction" @default.
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