Many-body localization due to random interactions

Abstract

The possibility of observing many body localization of ultracold atoms in a one dimensional optical lattice is discussed for random interactions. In the non-interacting limit, such a system reduces to single-particle physics in the absence of disorder, i.e. to extended states. In effect the observed localization is inherently due to interactions and is thus a genuine many-body effect. In the system studied, many-body localization manifests itself in a lack of thermalization visible in temporal propagation of a specially prepared initial state, in transport properties, in the logarithmic growth of entanglement entropy as well as in statistical properties of energy levels.

5pp, 4figs. version close to published one

References in corpus (11)

• The density-matrix renormalization group in the age of matrix product states
• Many body localization and thermalization in quantum statistical mechanics
• Localization of interacting fermions at high temperature
• Direct observation of Anderson localization of matter-waves in a controlled disorder
• Many-body localization edge in the random-field Heisenberg chain
• The distribution of the ratio of consecutive level spacings in random matrix ensembles
• Many body localization in Heisenberg XXZ magnet in a random field
• Phenomenology of fully many-body-localized systems
• Dynamics in many-body localized quantum systems without disorder
• Scenario for delocalization in translation invariant systems
• Quantum quenches and many-body localization in the thermodynamic limit

Cited by in corpus (8)

• Many-body localization caused by temporal disorder
• Universal dynamics of density correlations at the transition to many-body localized state
• Many-body localization in presence of cavity mediated long-range interactions
• Many-body localization for randomly interacting bosons
• Two bosonic quantum walkers in one-dimensional optical lattices
• Instability of subdiffusive spin dynamics in strongly disordered Hubbard chain
• Few-boson localization in a continuum with speckle disorder
• Einstein relation for a driven disordered quantum chain in subdiffusive regime