Conformal invariance and string theory in compact space: bosons

Jain, Sanjay ; Shankar, R. ; Wadia, Spenta Rustom (1985) Conformal invariance and string theory in compact space: bosons Physical Review D, 32 (10). pp. 2713-2721. ISSN 0556-2821

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Official URL: http://prd.aps.org/abstract/PRD/v32/i10/p2713_1

Related URL: http://dx.doi.org/10.1103/PhysRevD.32.2713

Abstract

The area law of the Nambu-Goto string is generalized to include a solid-angle-type term, which is purely topological in nature. Such a term exists and is unique provided the manifold M in which the string lives satisfies certain topological conditions. This generalization may be useful to maintain conformal invariance in case M is compact. Using methods of Polyakov and Friedan we identify the conformal anomaly coefficient with the central charge of the Virasoro algebra of this string theory. As an illustration we choose M to be a compact Lie group and compute the anomaly coefficient following the work of Knizhnik and Zamolodchikov.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:12783
Deposited On:11 Nov 2010 08:57
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