Many-body localization of bosons in an optical lattice: Dynamics in disorder-free potentials

  title={Many-body localization of bosons in an optical lattice: Dynamics in disorder-free potentials},
  author={Ruixiao Yao and Jakub J. Zakrzewski},
  journal={Physical Review B},
The phenomenon of Many-Body Stark Localization of bosons in tilted optical lattice is studied. Despite the fact that no disorder is necessary for Stark localization to occur, it is very similar to well known many body localization (MBL) in sufficiently strong disorder. Not only the mean gap ratio reaches poissonian value as characteristic for localized situations but also the eigenstates reveal multifractal character as in standard MBL. Stark localization enables a coexistence of spacially… Expand
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