The Gravitational Sine-Gordon Model

Details The Gravitational Sine-Gordon Model The Gravitational Sine-Gordon Model

1992-12-03

arxiv.org/abs/hep-th/9212023v1

Nucl.Phys. B396 (1993) 693-707

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, 4 figures (not included), PUPT-1357

Scientific paper

10.1016/0550-3213(93)90668-F

We use matrix model results to investigate the Sine-Gordon model coupled to two dimensional gravity. For relevant (in the RG sense) potentials, we show that the $c=1$ string, which appears in the ultraviolet limit of this model, flows to a set of decoupled $c=0$ (pure gravity) models in the infrared. The torus partition sum, which was argued previously to count the number of string degrees of freedom and hence satisfy a new $c$ -- theorem, is shown to be a monotonically decreasing function of the scale (given by the quantum area of the world-sheet).

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