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CPT anomaly in two-dimensional chiral U(1) gauge theories | | F.R. Klinkhamer
; J. Nishimura
; | | Date: |
20 Jun 2000 | | Journal: | Phys.Rev. D63 (2001) 097701 | | Subject: | hep-th | | Abstract: | The CPT anomaly, which was first seen in perturbation theory for certain four-dimensional chiral gauge theories, is also present in the exact result for a class of two-dimensional chiral U(1) gauge theories on the torus. Specifically, the chiral determinant for periodic fermion fields changes sign under a CPT transformation of the background gauge field. There is, in fact, an anomaly of Lorentz invariance, which allows for the CPT theorem to be circumvented. | | Source: | arXiv, hep-th/0006154 | | Services: | Forum | Review | PDF | Favorites | |
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