Prethermal floquet steady states and instabilities in the periodically driven, weakly interacting bose-hubbard model

Marin Bukov, Sarang Gopalakrishnan, Michael Knap, Eugene Demler

Research output: Contribution to journalArticlepeer-review

83 Scopus citations

Abstract

We explore prethermal Floquet steady states and instabilities of the weakly interacting two-dimensional Bose-Hubbard model subject to periodic driving. We develop a description of the nonequilibrium dynamics, at arbitrary drive strength and frequency, using a weak-coupling conserving approximation. We establish the regimes in which conventional (zero-momentum) and unconventional [(π,π)-momentum] condensates are stable on intermediate time scales. We find that condensate stability is enhanced by increasing the drive strength, because this decreases the bandwidth of quasiparticle excitations and thus impedes resonant absorption and heating. Our results are directly relevant to a number of current experiments with ultracold bosons.

Original languageEnglish (US)
Article number205301
JournalPhysical review letters
Volume115
Issue number20
DOIs
StatePublished - Nov 11 2015

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Prethermal floquet steady states and instabilities in the periodically driven, weakly interacting bose-hubbard model'. Together they form a unique fingerprint.

Cite this