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Energy-momentum Tensor for Scalar Fields Coupled to the Dilaton in Two Dimensions by Lombardo, Fernando C.; Mazzitelli, Francisco D.; Russo, Jorge G. is a scholarly article available to read on EtoBox.

What is Energy-momentum Tensor for Scalar Fields Coupled to the Dilaton in Two Dimensions about?

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 the 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.

Author

Lombardo, Fernando C.; Mazzitelli, Francisco D.; Russo, Jorge G.

Published

1998

Language

EN