QUANTUM DYNAMICS OF AN ELECTROMAGNETIC MODE IN A CAVITY

被引：13

作者：

CASTRO NETO, AH

CALDEIRA, AO

机构：

[1] Instituto de Física Gleb Wataghin, Cidade Universitria, 13081 Campinas So Paulo

来源：

PHYSICAL REVIEW A | 1990年 / 42卷 / 11期

关键词：

D O I：

10.1103/PhysRevA.42.6884

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The problem of an electromagnetic mode in a cavity is analyzed by means of functional integrals. Our approach follows the Feynman-Vernon method in the coherent-state representation. The reduced density operator for the electromagnetic mode is evaluated. Its matrix elements in the occupation-number representation are computed and it is shown that off-diagonal elements of this operator decay in time very rapidly. The farther they are from the main diagonal the faster they decay. This is another example showing how quantum interference is destroyed in a nonisolated system. © 1990 The American Physical Society.

引用

页码：6884 / 6893

页数：10

共 8 条

[1] INFLUENCE OF DAMPING ON QUANTUM INTERFERENCE - AN EXACTLY SOLUBLE MODEL [J].

CALDEIRA, AO ;

LEGGETT, AJ .

PHYSICAL REVIEW A, 1985, 31 (02) :1059-1066

[2] EFFECT OF FRICTION ON ELECTRON-TRANSFER IN BIOMOLECULES [J].

GARG, A ;

ONUCHIC, JN ;

AMBEGAOKAR, V .

JOURNAL OF CHEMICAL PHYSICS, 1985, 83 (09) :4491-4503

[3]

HAKEN H, 1970, ENCY PHYSICS, V25

[4] SOLUTIONS OF DAMPED OSCILLATOR FOKKER-PLANCK EQUATION [J].

LOUISELL, WH ;

MARBURGER, JH .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1967, QE 3 (08) :348-+

[5]

LOUISELL WH, 1973, QUANTUM STATISTICAL

[6] DAMPING OF QUANTUM COHERENCE - THE MASTER-EQUATION APPROACH [J].

SAVAGE, CM ;

WALLS, DF .

PHYSICAL REVIEW A, 1985, 32 (04) :2316-2323

[7]

SCHULMAN LS, 1981, TECHNIQUES APPLICATI

[8] NEW METHOD FOR STUDYING DISORDERED QUANTUM-SYSTEMS [J].

SCHUSTER, HG ;

VIEIRA, VR .

PHYSICAL REVIEW B, 1986, 34 (01) :189-198

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