Gravitational and axial anomalies for generalized Euclidean Taub-NUT metrics
نویسندگان
چکیده
The gravitational anomalies are investigated for generalized Euclidean Taub-NUT metrics which admit hidden symmetries analogous to the Runge-Lenz vector of the Kepler-type problem. In order to evaluate the axial anomalies, the index of the Dirac operator for these metrics with the APS boundary condition is computed. The role of the Killing-Yano tensors is discussed for these two types of quantum anomalies. Pacs: 04.62.+v
منابع مشابه
Quantum anomalies for generalized Euclidean Taub-NUT metrics
We investigate quantum anomalies for generalized Euclidean TaubNUT metrics which admit hidden symmetries analogous to the RungeLenz vector of the Kepler-type problem. We review results which show that the appearance of gravitational anomalies is connected with the absence of Killing-Yano tensors for these metrics. We have found that for axial anomalies the presence of Killing-Yano tensors is ir...
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