ROLE OF PHASE COHERENCE IN THE TRANSITION DYNAMICS OF A PERIODICALLY DRIVEN 2-LEVEL SYSTEM

被引：160

作者：

KAYANUMA, Y

机构：

[1] Department of Physics, Faculty of Science, Tohoku University

来源：

PHYSICAL REVIEW A | 1994年 / 50卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.50.843

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Some aspects of quantum tunneling of a particle in a double-well potential periodically driven by an external force are studied within the two-level approximation. A closed expression for the temporal evolution of the occupation probability is obtained in the limit of large-amplitude oscillation by the transfer-matrix formalism. The mechanism of coherent destruction of tunneling found by Grossmann et al. [Phys. Rev. Lett. 67, 516 (1991)] is made clear from a viewpoint of interference at periodic level crossings.

引用

页码：843 / 845

页数：3

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