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arXiv · 1901.10586

On worldsheet curvature coupling in pure spinor sigma-model

Henrique Flores·Andrei Mikhailov
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Abstract

We discuss the relation between unintegrated and integrated vertex operators in string worldsheet theory, in the context of BV formalism. In particular, we clarify the origin of the Fradkin-Tseytlin term. We first consider the case of bosonic string, and then concentrate on the case of pure spinor superstring in $AdS_5\times S^5$. In particular, we compute the action of $b_0 - \bar{b}_0$ on the beta-deformation vertex. As a by-product, we formulate some new conjectures on general finite-dimensional vertices.

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Henrique Flores, Andrei Mikhailov. 2019-01-29. On worldsheet curvature coupling in pure spinor sigma-model. https://arxiv.org/abs/1901.10586

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