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Intermediate super-exponential localization with Aubry-André chains
Arindam Mallick, Alexei Andreanov, Sergej Flach
We demonstrate the existence of an intermediate super-exponential localization regime for eigenstates of the Aubry-André chain. In this regime, the eigenstates localize factorially…
Correlated metallic two-particle bound states in Wannier--Stark flatbands
Arindam Mallick, Alexei Andreanov, Sergej Flach
Tight-binding single-particle models on simple Bravais lattices in space dimension , when exposed to commensurate DC fields, result in the complete absence of transport d…
Wannier-Stark flatbands in Bravais lattices
Arindam Mallick, Nana Chang, Wulayimu Maimaiti +2
We systematically construct flatbands (FB) for tight-binding models on simple Bravais lattices in space dimension in the presence of a static uniform DC field. Commensur…
Quench dynamics in disordered two-dimensional Gross-Pitaevskii Lattices
Arindam Mallick, Thudiyangal Mithun, Sergej Flach
We numerically investigate the quench expansion dynamics of an initially confined state in a two-dimensional Gross-Pitaevskii lattice in the presence of external disorder. The expa…
Quantum Caging in Interacting Many-Body All-Bands-Flat Lattices
Carlo Danieli, Alexei Andreanov, Thudiyangal Mithun +1
We consider translationally invariant tight-binding all-bands-flat networks which lack dispersion. In a recent work [arXiv:2004.11871] we derived the subset of these networks which…
Nonlinear caging in All-Bands-Flat Lattices
Carlo Danieli, Alexei Andreanov, Thudiyangal Mithun +1
We study the impact of classical short-range nonlinear interactions on transport in lattices with no dispersion. The single particle band structure of these lattices contains flat…
Anomalous transport in a topological Wannier-Stark ladder
Kun Woo Kim, Alexei Andreanov, Sergej Flach
A dc (e.g. electric) field with commensurate lattice direction turns a single particle band structure in dimensions into an infinite set of equally spaced irreducible $(d-1)=…
Interacting ultracold atomic kicked rotors: dynamical localization ?
Pinquan Qin, Alexei Andreanov, Hee Chul Park +1
We study the fate of dynamical localization of two quantum kicked rotors with contact interaction. This interaction mimics experimental realizations with ultracold atomic gases. Dy…