Universal delocalization rate in driven dissipative two-level systems at high temperature

Nancy Makri, Liqiang Wei

Research output: Contribution to journalArticlepeer-review

Abstract

We study the lifetime of localized states in a two-level system coupled to a dissipative bath and driven by strong time-periodic monochromatic fields. At high temperature, moderate friction and high frequency driving the dynamics is practically exponential characterized by a rate constant. By mapping the driven dissipative two-level system onto a dissipative multilevel curve-crossing problem and applying semiclassical nonadiabatic rate theory we show that strong fields can stabilize localized states over long time intervals and that the delocalization rate exhibits a “universal” plateau whose value depends only on the intensity of the driving field. Numerical path integral results confirm our theoretical predictions.

Original languageEnglish (US)
Pages (from-to)2475-2478
Number of pages4
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume55
Issue number3
DOIs
StatePublished - 1997

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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