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Title: Energy-momentum tensor for scalar fields coupled to the dilaton in two dimensions
Author: Lombardo, Fernando C.
Mazzitelli, Francisco D.
Russo, J. G. (Jorge Guillermo)
Keywords: Relativitat general (Física)
General relativity (Physics)
Issue Date: 1999
Publisher: The American Physical Society
Abstract: We clarify some issues related to the evaluation of the mean value of the energy-momentum tensor for quantum scalar fields coupled to the dilaton field in two-dimensional gravity. Because of this coupling, the energy-momentum tensor for matter is not conserved and therefore it is not determined by the trace anomaly. We discuss different approximations for the calculation of the energy-momentum tensor and show how to obtain the correct amount of Hawking radiation. We also compute cosmological particle creation and quantum corrections to the Newtonian potential.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review D, 1999, vol. 59, núm. 6, p. 064007-1-064007-8
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ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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