期刊
PHYSICAL REVIEW LETTERS
卷 122, 期 17, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.170403
关键词
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资金
- European Commission (UQUAM, AQuS) [319278]
- Nanosystems Initiative Munich (NIM Grant) [EXC4]
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy [EXC-2111-39081486]
- City University of Hong Kong [9610428]
- Laboratory for Physical Sciences
- Microsoft
- European Research Council (ERC) [319278] Funding Source: European Research Council (ERC)
We experimentally study many-body localization (MBL) with ultracold atoms in a weak onedimensional quasiperiodic potential, which in the noninteracting limit exhibits an intermediate phase that is characterized by a mobility edge. We measure the time evolution of an initial charge density wave after a quench and analyze the corresponding relaxation exponents. We find clear signatures of MBL when the corresponding noninteracting model is deep in the localized phase. We also critically compare and contrast our results with those from a tight-binding Aubry-Andre model, which does not exhibit a singleparticle intermediate phase, in order to identify signatures of a potential many-body intermediate phase.
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