共 75 条
Stability of electric field driven many-body localization in an interacting long-range hopping model
被引:13
作者:
Bhakuni, Devendra Singh
[1
]
Sharma, Auditya
[1
]
机构:
[1] Indian Inst Sci Educ & Res, Bhopal 462066, India
关键词:
METAL-INSULATOR-TRANSITION;
BLOCH ELECTRONS;
THERMALIZATION;
ENTANGLEMENT;
D O I:
10.1103/PhysRevB.102.085133
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
We study the fate of many-body localization (MBL) in the presence of long-range hopping (similar to 1/r(sigma)) 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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页数:8
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