Marginal Deformations and Closed String Couplings in Open String Field Theory

Details Marginal Deformations and Closed String Couplings in Open String Field Theory Marginal Deformations and Closed String Couplings in Open String Field Theory

2004-09-24

arxiv.org/abs/hep-th/0409249v1

JHEP0411:050,2004

Physics

High Energy Physics

High Energy Physics - Theory

17 pages

Scientific paper

10.1088/1126-6708/2004/11/050

We investigate analytic classical solutions in open string field theory which are constructed in terms of marginal operators. In the classical background, we evaluate a coupling between an on-shell closed string state and the open string field. The resulting coupling exhibits periodic behavior as expected from the marginal boundary deformation of background Wilson lines or a marginal tachyon lump. We confirm that the solutions in open string field theory correspond to a class of marginal deformations in conformal field theory.

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