Conformal affine Toda model of two-dimensional black holes: The end-point state and the [ital S] matrix

Journal Article · Wed Sep 15 00:00:00 EDT 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.2660· OSTI ID:6217428

Belgiorno, F; Cattaneo, A S ^[1]; Fucito, F ^[2]; Martellini, M ^[3]

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1. Departimento di Fisica, Universita di Milano, 20133 Milano (Italy)
2. Dipartimento di Fisica, Universita di Roma II Tor Vergata'' Istituto Nazionale di Fisica Nucleare, Sezione di Roma II, 00173 Roma (Italy)
3. Dipartimento di Fisica, Universita di Roma I La Sapienza,'' 00185 Roma (Italy)

In this paper we investigate a dilaton-gravity theory, which can be viewed as an SL(2) conformal affine Toda (CAT) theory. This new model is inspired by some previous work by Bilal, Callan, and de Alwis. The main results obtained in our approach are (i) a field redefinition of the CAT basis in terms of which it is possible to get the black hole solutions already known in the literature, and (ii) an investigation of the scattering matrix problem for the quantum black hole states. Given the validity of our assumptions, there is a range of values of the [ital N] free-falling shock matter fields forming the black hole solution, for which the end-point state of the black hole evaporation is a zero temperature regular remnant geometry. The quantum evolution to this final state seems to be nonunitary, in agreement with Hawking's scenario for black hole evaporation.

• OSTI ID: 6217428
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 48:6; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BLACK HOLES
CONFORMAL INVARIANCE
QUANTUM GRAVITY
EVAPORATION
S MATRIX
TWO-DIMENSIONAL CALCULATIONS
FIELD THEORIES
INVARIANCE PRINCIPLES
MATRICES
PHASE TRANSFORMATIONS
QUANTUM FIELD THEORY
662110* - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-)