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- W1818484098 abstract "We present a review of the canonical quantization approach to the problem of non-perturbative 2d dilaton gravity. In the case of chiral matter we describe a method for solving the constraints by constructing a Kac-Moody current algebra. For the models of interest, the relevant KacMoody algebras are based on SL(2, R) ⊗U(1) group and on an extended 2d Poincare group. As a consequence, the constraints become free-field Virasoro generators with background charges. We argue that the same happens in the non-chiral case. The problem of the corresponding BRST cohomology is discussed as well as the unitarity of the theory. One can show that the theory is unitary by chosing a physical gauge, and hence the problem of transitions from pure into mixed sates is absent. Implications for the physics of black holes are discussed." @default.
- W1818484098 created "2016-06-24" @default.
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- W1818484098 date "1993-07-26" @default.
- W1818484098 modified "2023-09-27" @default.
- W1818484098 title "NON-PERTURBATIVE TWO-DIMENSIONAL DILATON GRAVITY" @default.
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- W1818484098 hasPublicationYear "1993" @default.
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