Analytic Solutions for Marginal Deformations in Open String Field Theory

Details Analytic Solutions for Marginal Deformations in Open String Field Theory Analytic Solutions for Marginal Deformations in Open String Field Theory

2007-01-26

arxiv.org/abs/hep-th/0701249v2

JHEP0801:028,2008

Physics

High Energy Physics

High Energy Physics - Theory

34 pages, LaTeX2e, 1 figure; v2: minor corrections, version published in JHEP

Scientific paper

10.1088/1126-6708/2008/01/028

We develop a calculable analytic approach to marginal deformations in open string field theory using wedge states with operator insertions. For marginal operators with regular operator products, we construct analytic solutions to all orders in the deformation parameter. In particular, we construct an exact time-dependent solution that describes D-brane decay and incorporates all alpha' corrections. For marginal operators with singular operator products, we construct solutions by regularizing the singularity and adding counterterms. We explicitly carry out the procedure to third order in the deformation parameter.

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