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Quantum effects for extrinsic geometry of strings via the generalized Weierstrass representation

B. G. Konopelchenko, G. Landolfi

hep-tharXiv:hep-th/9810209

Abstract

The generalized Weierstrass representation for surfaces in R3 is used to study quantum effects for strings governed by Polyakov-Nambu-Goto action. Correlators of primary fields are calculated exactly in one-loop approximation for the pure extrinsic Polyakov action. Geometrical meaning of infrared singularity is discussed. The Nambu-Goto and spontaneous curvature actions are treated perturbatively.

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