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Boundary conformal field theories on random surfaces and the non-critical open string

Mansfield, P.; Neves, R.

Authors

P. Mansfield

R. Neves



Abstract

We analyse boundary conformal field theories on random surfaces using the conformal gauge approach of David, Distler and Kawai. The crucial point is the choice of boundary conditions on the Liouville field. We discuss the Weyl anomaly cancellation for Polyakov's non-critical open bosonic string with Neumann, Dirichlet and free boundary conditions. Dirichlet boundary conditions on the Liouville field imply that the metric is discontinuous as the boundary is approached. We consider the semi-classical limit and argue how it singles out the free boundary conditions for the Liouville field. We define the open string susceptibility, the anomalous gravitational scaling dimensions and a new Yang-Mills Feynman mass critical exponent.

Citation

Mansfield, P., & Neves, R. (1996). Boundary conformal field theories on random surfaces and the non-critical open string. Nuclear Physics B, 479(1-2), 82-112. https://doi.org/10.1016/0550-3213%2896%2900446-4

Journal Article Type Article
Acceptance Date Aug 26, 1996
Publication Date Nov 11, 1996
Deposit Date Jun 16, 2015
Publicly Available Date Mar 29, 2024
Journal Nuclear Physics B
Print ISSN 0550-3213
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 479
Issue 1-2
Pages 82-112
DOI https://doi.org/10.1016/0550-3213%2896%2900446-4
Related Public URLs http://arxiv.org/abs/hep-th/9605097

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