Nonequilibrium dynamics of bosonic Mott insulators in an electric field

M. Kolodrubetz, D. Pekker, B. K. Clark, K. Sengupta

Research output: Contribution to journalArticle

Abstract

We study the nonequilibrium dynamics of one-dimensional Mott-insulating bosons in the presence of a tunable effective electric field E which takes the system across a quantum critical point separating a disordered and a translation symmetry broken ordered phase. We provide an exact numerical computation of the residual energy Q, the log fidelity F, the defect density D/L, and the order parameter correlation function for a linear-in-time variation of E with a rate v. We discuss the temporal and spatial variation of these quantities for a range of v and for finite system sizes as relevant to realistic experimental setups. We show that in finite-sized systems Q, F, and D obey Kibble-Zurek scaling, and suggest further experiments within this setup to test our theory.

Original languageEnglish (US)
Article number100505
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume85
Issue number10
DOIs
StatePublished - Mar 16 2012

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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