THE NEW PHYSICS OF STRONGLY COUPLED 2D GRAVITY
Jean-Loup GERVAIS
Abstract
The strong coupling physics of two dimensional gravity at C=7, 13, 19 is summarized. It is based on a new set of local fields which do not preserve chirality. Thus this quantum number becomes ``deconfined'' in the strongly coupled regime. This new set leads to a novel definition of the area elements, and hence to a modified expression for the string suceptibility, which the real part of the KPZ formula. It allows to define topological (strongly coupled ) Liouville string theories (without transverse degree of freedom) which are completely solvable, and are natural extensions of the standard matrix models.
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