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arXiv · hep-th/0409249

Marginal Deformations and Closed String Couplings in Open String Field Theory

F. Katsumata·T. Takahashi·S. Zeze
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Abstract

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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F. Katsumata, T. Takahashi, S. Zeze. 2004-09-24. Marginal Deformations and Closed String Couplings in Open String Field Theory. https://doi.org/10.1088/1126-6708%2F2004%2F11%2F050

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