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arXiv 2403.04835hep-thcond-mat.str-elhep-ph
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不可逆对称性、反常与散射振幅

Non-Invertible Symmetries, Anomalies and Scattering Amplitudes

Christian Copetti, Lucia Cordova, Shota Komatsu

AI总结:

本文研究不可逆对称性或反常对S矩阵交叉对称性的修改,发现两维可积流中bootstrap导出的S矩阵与不可逆对称性不相容,提出遵循fusion category规则且适用于离散反常的替代方案。

摘要:

我们证明,在某些具有不可逆对称性或反常的理论中,S矩阵的交叉对称性会被修改。聚焦于两维下到有能隙相的可积流,我们发现先前从bootstrap方法导出的S矩阵与流中的不可逆对称性不相容。我们提出了一致的替代方案,它们违反标准交叉对称性,但遵循由fusion category决定的修改规则。我们将这些规则推广到具有离散反常的理论。

英文摘要:

We show that crossing symmetry of S-matrices is modified in certain theories with non-invertible symmetries or anomalies. Focusing on integrable flows to gapped phases in two dimensions, we find that S-matrices derived previously from the bootstrap approach are incompatible with non-invertible symmetries along the flow. We present consistent alternatives, which however violate standard crossing symmetry and obey modified rules dictated by fusion categories. We extend these rules to theories with discrete anomalies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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