Frequency dependence of quantum localization in a periodically driven system

Manabu Maohida, Keiji Saito, Seiji Miyashita

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Under a periodically driven external field or a temporally oscillating boundary, quantum few- body systems whose corresponding classical systems show chaos are modeled by the random matrices with an oscillating parameter. In such systems, time evolution of the system from the ground state shows the quantum diffusion. However, due to periodic oscillation of the parameter, quantum interference effect prevents the energy of the system from diverging and the energy saturates after some transient time. We show an example where the energy eventually fluctuates around a constant saturated energy. Since the value of this saturated energy depends on the frequency of the driving, we also investigate the dependence of the saturated energy on the frequency in the small frequency region.

Original languageEnglish
Pages (from-to)109-110
Number of pages2
JournalJournal of the Physical Society of Japan
Volume72
Issue numberSUPPL.C
DOIs
Publication statusPublished - 2003 Jan 1
Externally publishedYes

Keywords

  • Quantum dynamics
  • Quantum localization
  • Random matrix

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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