Unruh response functions for scalar fields in de Sitter space

Björn Garbrecht; Tomislav Prokopec

doi:10.1088/0264-9381/21/21/016

Unruh response functions for scalar fields in de Sitter space

Björn Garbrecht
, Tomislav Prokopec

Institut für Theoretische Physik Heidelberg
Max Planck Institute for Gravitational Physics

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	4993-5004
Number of pages	12
Journal	Classical and Quantum Gravity
Volume	21
Issue number	21
DOIs	https://doi.org/10.1088/0264-9381/21/21/016
State	Published - 7 Nov 2004
Externally published	Yes

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title = "Unruh response functions for scalar fields in de Sitter space",

abstract = "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.",

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AU - Prokopec, Tomislav

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AB - 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.

UR - https://www.scopus.com/pages/publications/8744253635

U2 - 10.1088/0264-9381/21/21/016

DO - 10.1088/0264-9381/21/21/016

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AN - SCOPUS:8744253635

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VL - 21

SP - 4993

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JO - Classical and Quantum Gravity

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ER -

Unruh response functions for scalar fields in de Sitter space

Abstract

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