The point-splitting regularization of (2+1)d parity breaking models

Details The point-splitting regularization of (2+1)d parity breaking models The point-splitting regularization of (2+1)d parity breaking models

2000-11-16

arxiv.org/abs/hep-th/0011154v2

Nucl.Phys.B600:203,2001

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, RevTex. Minor changes, some references added

Scientific paper

10.1016/S0550-3213(01)00046-3

The coefficient of the Chern-Simons term in the effective action for massive Dirac fermions in three dimensions is computed by using the point-splitting regularization method. We show that in this framework no ambiguities arise. This is related to the fact that the point-splitting regularization does not introduce additional parity breaking effects, implementing one possible physical criterion in order to uniquely characterize the system.

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