Torsion , topology and CPT anomaly in two - dimensional chiral U ( 1 ) gauge theory
نویسندگان
چکیده
Torsion, topology and CPT anomaly in two-dimensional chiral U (1) gauge theory Abstract We consider the CPT anomaly of two-dimensional chiral U (1) gauge theory on a torus with topologically nontrivial zweibeins corresponding to the presence of spacetime torsion. The resulting chiral determinant can be expressed in terms of the standard chiral determinant without torsion, but with modified spinor boundary conditions. This implies that the two-dimensional CPT anomaly can be moved from one spin structure to another by choosing appropriate zweibeins. Similar results apply to higher-dimensional chiral gauge theories.
منابع مشابه
Torsion and CPT anomaly in two-dimensional chiral U(1) gauge theory
We consider the CPT anomaly of two-dimensional chiral U(1) gauge theory on a torus with topologically nontrivial zweibeins corresponding to the presence of torsion. The resulting chiral determinant can be expressed in terms of the standard chiral determinant without torsion, but with modified spinor boundary conditions. This implies that the two-dimensional CPT anomaly can be moved from one spi...
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