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arXiv 2002.12060hep-th
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具有相互作用的无质量扇形的可积场论

Integrable Field Theories with an Interacting Massless Sector

Michael C. Abbott, Inês Aniceto

摘要:

我们提出了第一个已知的可积相对论场论与相互作用的质量和无质量部门。我们证明了无质量扇区的知识对于理解大质量扇区的频谱是必不可少的。在空间体积中的这个谱多项式中的项(在大量理论中,Bethe的精度就足够了)不仅需要类似于Lüscher的修正(通常是指数级的小),而且需要完整的TBA积分方程。我们的动机是这些想法的AdS/CFT的影响,但目前在这里只有场论的结果。

英文摘要:

We present the first known integrable relativistic field theories with interacting massive and massless sectors. And we demonstrate that knowledge of the massless sector is essential for understanding of the spectrum of the massive sector. Terms in this spectrum polynomial in the spatial volume (the accuracy for which the Bethe ansatz would suffice in a massive theory) require not just Lüscher-like corrections (usually exponentially small) but the full TBA integral equations. We are motivated by the implications of these ideas for AdS/CFT, but present here only field-theory results.

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