Quantized massive scalar fields in the spacetime of a charged dilatonic black hole

Details Quantized massive scalar fields in the spacetime of a charged dilatonic black hole Quantized massive scalar fields in the spacetime of a charged dilatonic black hole

2002-10-20

arxiv.org/abs/gr-qc/0210070v1

Acta Phys.Polon. B34 (2003) 3921-3946

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

16 pages, 4 figures

Scientific paper

Employing the approximate effective action constructed from the coincidence limit of the Hadamard-Minakshisundaram-DeWitt (HaMiDeW) coefficient a_{3}, the renormalized stress-energy tensor of the quantized massive scalar field in the spacetime of a static and electrically charged dilatonic black hole is calculated. Special attention is paid to the minimally and conformally coupled fields propagating in geometries with a=1, and to the power expansion of the general stress-energy tensor for small values of charge. A compact expression for the trace of the stress-energy tensor is presented.

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