Quantum mechanical tunneling through a time-dependent barrier

Jiu Yuan Ge, John Z.H. Zhang

Research output: Contribution to journalArticle

Abstract

We present a numerical investigation of quantum mechanical tunneling process in a time-dependent (fluctuating) barrier using a one dimensional model of Eckart barrier. The tunneling probability is calculated for two cases in which (1) the height of the barrier is undergoing harmonic oscillation with frequency ω and (2) the location of the barrier is undergoing harmonic oscillation with frequency ω. It is observed in both cases that the quantum mechanical tunneling probability exhibits a maximum as a function of the oscillating frequency ω between the low and high frequency limits. The physical origin and process underlying this resonantlike phenomenon are proposed in this paper based on the current model study.

Original languageEnglish (US)
Pages (from-to)8628-8632
Number of pages5
JournalJournal of Chemical Physics
Volume105
Issue number19
DOIs
StatePublished - Jan 1 1996

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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