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
Externally publishedYes

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Bosons
Defect density
Electric fields
insulators
electric fields
broken symmetry
critical point
bosons
Experiments
scaling
defects
energy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Nonequilibrium dynamics of bosonic Mott insulators in an electric field. / Kolodrubetz, M.; Pekker, D.; Clark, B. K.; Sengupta, K.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 85, No. 10, 100505, 16.03.2012.

Research output: Contribution to journalArticle

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