Regularization of identity based solution in string field theory

Details Regularization of identity based solution in string field theory Regularization of identity based solution in string field theory

2010-08-06

arxiv.org/abs/1008.1104v2

JHEP 1010:070,2010

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, minor typos corrected and references added

Scientific paper

10.1007/JHEP10(2010)070

We demonstrate that an Erler-Schnabl type solution in cubic string field theory can be naturally interpreted as a gauge invariant regularization of an identity based solution. We consider a solution which interpolates between an identity based solution and ordinary Erler-Schnabl one. Two gauge invariant quantities, the classical action and the closed string tadpole, are evaluated for finite value of the gauge parameter. It is explicitly checked that both of them are independent of the gauge parameter.

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