Stability of electric field driven many-body localization in an interacting long-range hopping model
We study the fate of many-body localization (MBL) in the presence of long-range hopping (∼ 1 / rσ ) in a system subjected to an electric field (static and time periodic) along with a slowly varying aperiodic potential. We show that the MBL in the static electric field model is robust against arbitra...
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Veröffentlicht in: | Physical review. B 2020-08, Vol.102 (8), p.1, Article 085133 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We study the fate of many-body localization (MBL) in the presence of long-range hopping (∼ 1 / rσ ) in a system subjected to an electric field (static and time periodic) along with a slowly varying aperiodic potential. We show that the MBL in the static electric field model is robust against arbitrary long-range hopping, in sharp contrast to other disordered models, where MBL is killed by sufficiently long range hopping. Next, we show that the drive-induced phenomena associated with an ac square wave electric field are also robust against long-range hopping. Specifically, we obtain drive-induced MBL, where a high-frequency drive can convert the ergodic phase into the MBL phase. Remarkably, we find that a coherent destruction of MBL is also possible with the aid of a resonant drive. Thus in both the static and time-periodic square wave electric field models, the qualitative properties of the system are independent of whether the hopping is short range or long range. |
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ISSN: | 2469-9950 2469-9969 |
DOI: | 10.1103/PhysRevB.102.085133 |