Generalized adiabatic impulse approximation

Takayuki Suzuki, Hiromichi Nakazato

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Nonadiabatic transitions in multilevel systems appear in various fields of physics, but it is not easy to analyze their dynamics in general. In this paper, we propose to extend the adiabatic impulse approximation to multilevel systems. This approximation method is shown to be equivalent to a series of unitary evolutions and facilitates to evaluate the dynamics numerically. In particular, we analyze the dynamics of the Landau-Zener grid model and the multilevel Landau-Zener-Stückelberg-Majorana interference model, and confirm that the results are in good agreement with the exact dynamics evaluated numerically. We also derive the conditions for destructive interference to occur in the multilevel system.

Original languageEnglish
Article number022211
JournalPhysical Review A
Volume105
Issue number2
DOIs
Publication statusPublished - 2022 Feb

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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