Photon emission from a time-varying dielectric medium in a cavity

被引：11

作者：

Saito, H

Hyuga, H

机构：

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1996年 / 65卷 / 05期

关键词：

dynamical Casimir effect; photon creation; dielectric; effective Hamiltonian; moving mirror; quantum field;

D O I：

10.1143/JPSJ.65.1139

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Field evolution in a cavity including a time-varying dielectric is studied by determining the effective Hamiltonian. For a uniform dielectric, the Hamiltonian is obtained explicitly, and we use it to discuss photon creation in the case of an oscillating dielectric constant. It is shown that the mode amplification is similar to that in the case of a moving mirror, but the intermode transition is suppressed. This property enables us to amplify a selected mode alone, unlike in the moving mirror case.

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页码：1139 / 1142

页数：4

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