Hawking radiation and the Virasoro algebra

Details Hawking radiation and the Virasoro algebra Hawking radiation and the Virasoro algebra

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989cqgra...6.1149r&link_type=abstract

Classical and Quantum Gravity (ISSN 0264-9381), vol. 6, Aug. 1, 1989, p. 1149-1158.

Astronomy and Astrophysics

Astronomy

2

Black Holes (Astronomy), Energy Spectra, Gravitational Fields, Particle Production, Astronomical Models, Boundary Value Problems, Dirichlet Problem, Two Dimensional Models, Wave Equations

Scientific paper

The Hawking radiation in two-dimensional moving mirror models of black-hole formation is shown to be a direct consequence of the central charge in the Virasoro algebra. Hence mirror trajectories related by the action of an anomaly-free SL(2, R) subgroup lead to the same energy-momentum tensor expectation value. The same invariance is found in the energy spectrum of the created particles. The relation to the Frolov-Filkovisky effective action approach is discussed.

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