Quantum vacuum radiation spectra from a semiconductor microcavity with a time-modulated vacuum rabi frequency

被引：197

作者：

De Liberato, Simone

Ciuti, Cristiano

Carusotto, Iacopo

机构：

[1] Univ Paris 07, Lab MPQ, F-75205 Paris, France

[2] Ecole Normale Super, Lab Pierre Aigrain, F-75005 Paris, France

[3] Univ Trent, INFM, CRS, BEC, I-38050 Trento, Italy

[4] Univ Trent, Dipartimento Fis, I-38050 Trento, Italy

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.98.103602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We develop a general theory of the quantum vacuum radiation generated by an arbitrary time modulation of the vacuum Rabi frequency of an intersubband transition in a doped quantum well system embedded in a planar microcavity. Both nonradiative and radiative losses are included within an input-output quantum Langevin framework. The intensity and the spectral signatures of the extra-cavity emission are characterized versus the modulation properties. For realistic parameters, the photon pair emission is predicted to largely exceed the blackbody radiation in the mid and far infrared. For strong and resonant modulation a parametric oscillation regime is achievable.

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页数：4

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