Symmetric orbifold OPE from string theory

Fuente: arXiv
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Autor principal: Sriprachyakul, Vit
Formato: Preprint
Publicado: 2025
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author Sriprachyakul, Vit
author_facet Sriprachyakul, Vit
contents We discuss how to obtain the symmetric orbifold fusion rule/OPE from the dual string theory. We consider two explicit examples: $k_b=3$ bosonic strings in ${\rm AdS_3}\times X$ in the near-boundary limit and $k=1$ hybrid strings in $\rm AdS_3\times S^3\times\mathbb{T}^4$. The main advantage of these two examples is that they have explicit expressions for the vertex operators in the $x$-basis. We show that the OPE of such vertex operators explicitly captures the longest cycle contribution in the symmetric orbifold fusion rule/OPE. We then argue how one can obtain the shorter-cycle contributions using the screening operators existing in the theories. We also discuss how our general result reduces to the earlier results in the literature.
format Preprint
id arxiv_https___arxiv_org_abs_2504_18244
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Symmetric orbifold OPE from string theory
Sriprachyakul, Vit
High Energy Physics - Theory
We discuss how to obtain the symmetric orbifold fusion rule/OPE from the dual string theory. We consider two explicit examples: $k_b=3$ bosonic strings in ${\rm AdS_3}\times X$ in the near-boundary limit and $k=1$ hybrid strings in $\rm AdS_3\times S^3\times\mathbb{T}^4$. The main advantage of these two examples is that they have explicit expressions for the vertex operators in the $x$-basis. We show that the OPE of such vertex operators explicitly captures the longest cycle contribution in the symmetric orbifold fusion rule/OPE. We then argue how one can obtain the shorter-cycle contributions using the screening operators existing in the theories. We also discuss how our general result reduces to the earlier results in the literature.
title Symmetric orbifold OPE from string theory
topic High Energy Physics - Theory
url https://arxiv.org/abs/2504.18244