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arXiv · 1506.03723

Large BCFT moduli in open string field theory

Carlo Maccaferri·Martin Schnabl
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Abstract

We use the recently constructed solution for marginal deformations by one of the authors, to analytically relate the BCFT modulus (lambda_BCFT) to the coefficient of the boundary marginal field in the solution (lambda_SFT). We explicitly find that the relation is not one to one and the same value of lambda_SFT corresponds to a pair of different lambda_BCFT 's: a "small" one, and a "large" one. The BCFT moduli space is fully covered, but the coefficient of the marginal field in the solution is not a good global coordinate on such a space.

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Carlo Maccaferri, Martin Schnabl. 2015-06-11. Large BCFT moduli in open string field theory. https://arxiv.org/abs/1506.03723

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