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Topological Conformal Algebra in $2d$ Gravity Coupled to Minimal Matter

Sudhakar Panda·Shibaji Roy
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Abstract

An infinite number of topological conformal algebras with varying central charges are explicitly shown to be present in $2d$ gravity (treated both in the conformal gauge and in the light-cone gauge) coupled to minimal matter. The central charges of the underlying $N=2$ theory in two different gauge choices are generically found to be different. The physical states in these theories are briefly discussed in the light of the $N=2$ superconformal symmetry.

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Sudhakar Panda, Shibaji Roy. 1993-09-10. Topological Conformal Algebra in $2d$ Gravity Coupled to Minimal Matter. https://arxiv.org/abs/hep-th/9309066

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