Department of Physics Papers

Document Type

Journal Article

Date of this Version

4-1991

Publication Source

Physical Review Letters

Volume

66

Issue

15

Start Page

1955

Last Page

1958

DOI

10.1103/PhysRevLett.66.1955

Abstract

We formulate two-dimensional topological gravity starting from local N = 2 superconformal geometry. The theory is free from the very beginning. The usual ‘‘twisting’’ of the N = 2 algebra emerges from symmetry breaking when we expand about a nonzero value for one of the ghost fields. The mysterious linear term in the supercurrent emerges automatically, as does a full superfield formalism for the whole system including ghosts. We analyze the moduli space of the ‘‘semirigid’’ super Riemann surfaces associated with this theory, including their allowed degenerations.

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Date Posted: 01 May 2017

This document has been peer reviewed.