Department of Physics Papers

Document Type

Journal Article

Date of this Version

11-1991

Publication Source

International Journal of Modern Physics A

Volume

6

Issue

27

Start Page

4909

Last Page

4924

DOI

10.1142/S0217751X9100232X

Abstract


We reconsider the problem of deforming a conformal field theory to a neighboring theory which is again critical. An invariant formulation of this problem is important for understanding the underlying symmetry of string theory. We give a simple derivation of A. Sen’s recent formula for the change in the stress tensor and show that, when correctly interpreted, it is coordinate-invariant. We give the corresponding superconformal perturbation for superfield backgrounds and explain why it has no direct analog for spin-field backgrounds.

Copyright/Permission Statement

Electronic version of an article published as Int. J. Mod. Phys. A6, 6, 27, 1991, 4909-4924 10.1142/S0217751X9100232X © [copyright World Scientific Publishing Company] http://www.worldscientific.com/doi/abs/10.1142/S0217751X9100232X

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Date Posted: 01 May 2017

This document has been peer reviewed.