String loop correction and the condensation of tachyon in 2d gravity

Details String loop correction and the condensation of tachyon in 2d gravity String loop correction and the condensation of tachyon in 2d gravity

1996-08-05

arxiv.org/abs/hep-th/9608020v1

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, latex

Scientific paper

Quantum theory of 2d gravity is examined by including a special quantum
correction, which corresponds to the open string loop corrections and provides
a new conformal anomaly for the corresponding $\sigma$ model. This anomaly
leads to the condensation of the tachyon, and the resultant effective theory
implies a possibility of extending the 2d gravity to the case of $c>1$.

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