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<p>We study topological defect lines in the symmetric-product orbifolds Sym<sup><i>N</i></sup>(<i>X</i>) for a generic seed CFT <i>X</i>. We focus on the defects which preserve the maximum of the <i>S</i><sub><i>N</i></sub> symmetry. When <i>X</i> is taken to describe the free theory of four fermions and four bosons on a 𝕋<sup>4</sup>, we construct holographically dual backgrounds describing propagation of tensionless closed strings in the presence of spacetime defects wrapping the conformal boundary. We find a precise match between the spectra of local on-shell closed-string vertex operators in the bulk and the spectra of non-local disorder fields in the spacetime theory.</p>

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Topological defects and tensionless holography

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月4日

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  • Bob Knighton,
  • Vit Sriprachyakul,
  • Jakub Vošmera

摘要

We study topological defect lines in the symmetric-product orbifolds SymN(X) for a generic seed CFT X. We focus on the defects which preserve the maximum of the SN symmetry. When X is taken to describe the free theory of four fermions and four bosons on a 𝕋4, we construct holographically dual backgrounds describing propagation of tensionless closed strings in the presence of spacetime defects wrapping the conformal boundary. We find a precise match between the spectra of local on-shell closed-string vertex operators in the bulk and the spectra of non-local disorder fields in the spacetime theory.