Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2004-04-13
Class.Quant.Grav. 21 (2004) 4993-5004
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
16 pages, 1 figure, accepted for publication by Classical and Quantum Gravity
Scientific paper
10.1088/0264-9381/21/21/016
We calculate the response functions of a freely falling Unruh detector in de
Sitter space coupled to scalar fields of different coupling 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.
Garbrecht Björn
Prokopec Tomislav
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