We consider a two-dimensional fermion on the strip in the presence of an arbitrary number of zero-dimensional boundary changing defects. We show that the theory is still conformal with time dependent stress-energy tensor and that the allowed defects can be understood as excited spin fields. Finally we compute correlation functions involving these excited spin fields without using bosonization.

中文翻译：

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带边界缺陷的带上的 2D 费米子作为具有激发自旋场的 CFT

我们在存在任意数量的零维边界变化缺陷的情况下考虑带材上的二维费米子。我们表明该理论仍然与时间相关的应力能量张量共形，并且允许的缺陷可以理解为激发的自旋场。最后，我们在不使用玻色化的情况下计算涉及这些激发自旋场的相关函数。