Stabilization of quantum metastable states by dissipation

Davide Valenti, Luca Magazzu', Bernardo Spagnolo, Caldara, Luca Magazzù, Spagnolo, Valenti, Pasquale Caldara

Research output: Contribution to journalArticlepeer-review

84 Citations (Scopus)

Abstract

Normally, quantum fluctuations enhance the escape from metastable states in the presence of dissipation. Here we show that dissipation can enhance the stability of a quantum metastable system, consisting of a particle moving in a strongly asymmetric double well potential, interacting with a thermal bath. We find that the escape time from the metastable region has a nonmonotonic behavior versus the system-bath coupling and the temperature, producing a stabilizing effect.
Original languageEnglish
Pages (from-to)235412-1-235412-7
Number of pages7
JournalPHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS
Volume91
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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