Unruh response functions for scalar fields in de Sitter space

被引：33

作者：

Garbrecht, B

Prokopec, T

机构：

[1] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany

[2] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-14476 Golm, Germany

来源：

CLASSICAL AND QUANTUM GRAVITY | 2004年 / 21卷 / 21期

关键词：

D O I：

10.1088/0264-9381/21/21/016

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the response functions of a freely falling Unruh detector in de Sitter space coupled to scalar fields of different couplings to the curvature, including the minimally coupled massless case. Although the responses differ strongly in the infrared as a consequence of the amplification of superhorizon modes, the energy levels of the detector are thermally populated.

引用

页码：4993 / 5004

页数：12

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