Phys. Rev. D 56, 7788–7791 (1997)

Trace anomaly of dilaton-coupled scalars in two dimensions

Abstract

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Raphael Bousso

DAMTP, University of Cambridge, Silver Street, Cambridge CB3 9EW, United Kingdom
Department of Physics, Stanford University, Stanford, California 94305-4060

Stephen Hawking
DAMTP, University of Cambridge, Silver Street, Cambridge CB3 9EW, United Kingdom

Received 4 June 1997; published in the issue dated 15 December 1997

Conformal scalar fields coupled to the dilaton appear naturally in two-dimensional models of black hole evaporation. We show that their trace anomaly is (1/24π)[R-6(∇φ)²-2□φ]. It follows that a Russo-Susskind-Thorlacius–type counterterm appears naturally in the one-loop effective action.

URL:

http://link.aps.org/doi/10.1103/PhysRevD.56.7788

DOI:

10.1103/PhysRevD.56.7788

PACS:

04.60.Kz, 04.62.+v, 04.70.Dy, 11.25.Hf

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Phys. Rev. D 56, 7788–7791 (1997)

Trace anomaly of dilaton-coupled scalars in two dimensions

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