论文标题
扭曲差距和全球对称性二维
Twist Gap and Global Symmetry in Two Dimensions
论文作者
论文摘要
我们表明，与$ \ mathfrak {u}（1）（1）\ times $ virasoro代数相对于带电的主要田地的每个紧凑，统一的二维CFT都消失了扭曲差距。这意味着要么手性代数通过零扭曲的带电的原始场增强，要么有一个无限的带电的原始场家族，它们会积聚为零扭曲。
We show that every compact, unitary two-dimensional CFT with an abelian conserved current has vanishing twist gap for charged primary fields with respect to the $\mathfrak{u}(1)\times$Virasoro algebra. This means that either the chiral algebra is enhanced by a charged primary field with zero twist or there is an infinite family of charged primary fields that accumulate to zero twist.
