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arXiv · hep-th/0202010

Quantum dilaton gravity as a linear dilaton conformal field theory

M. Cadoni·P. Carta·S. Mignemi
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Abstract

A model of matter-coupled gravity in two dimensions is quantized. The crucial requirement for performing the quantization is the vanishing of the conformal anomaly, which is achieved by tuning a parameter in the interaction potential. The spectrum of the theory is determined by mapping the model first onto a field theory with a Liouville interaction, then onto a linear dilaton conformal field theory. In absence of matter fields a pure gauge theory with massless ground state is found; otherwise it is possible to minimally couple up to 11 matter scalar fields: in this case the ground state is tachyonic and the matter sector decouples, like the transverse oscillators in the critical bosonic string.

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M. Cadoni, P. Carta, S. Mignemi. 2002-03-19. Quantum dilaton gravity as a linear dilaton conformal field theory. https://doi.org/10.1103/physrevd.65.104024

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