来自 Drinfel'd 扭曲的对偶共振振幅
Dual resonant amplitudes from Drinfel'd twists
AI总结:
本文利用 Drinfel'd 扭曲推导出一族对偶共振的四点快子振幅,发现其子族在固定角度高能和 Regge 散射区域具有明确的紫外行为,并探讨了已知 Veneziano 振幅的 $q$ 变形作为可观测量的可能性。
摘要:
我们假设存在一族对偶共振的四点快子振幅,它们是使用称为 Drinfel'd 扭曲的可逆余积映射推导出来的。这些振幅的一个子族表现出明确的紫外行为,即在固定角度高能和 Regge 散射区域中。这一发现源于对一组可观测量的系统研究,这些可观测量可以由 $q$ 变形世界面 CFT 构造出来,其底层共形群为量子群 $SU(1,1)_q$。我们通过讨论已知 Veneziano 振幅的 $q$ 变形(特别是 Coon 振幅)作为此类理论中可观测量的可能性(或其缺失)来结束我们的分析。
英文摘要:
We postulate the existence of a family of dual resonant, four-point tachyon amplitudes derived using invertible coproduct maps called Drinfel'd twists. A sub-family of these amplitudes exhibits well-defined ultraviolet behaviour, namely in the fixed angle high-energy and Regge scattering regimes. This discovery emerges from a systematic study of the set of observables that can be constructed out of $q$-deformed worldsheet CFTs with the underlying conformal group being the quantum group $SU(1,1)_q$. We conclude our analysis by discussing the possibility (or the lack thereof) of known $q$-deformations of the Veneziano amplitude as an observable in such theories, in particular, the Coon amplitude.
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