Anomaly-induced effective action and Chern–Simons modification of general relativity

Recently it was shown that the quantum vacuum effects of massless chiral fermion field in curved space–time leads to the parity-violating Pontryagin density term, which appears in the trace anomaly with imaginary coefficient. In the present work the anomaly-induced effective action with the parity-v...

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Bibliographic Details
Main Authors: Sebastião Mauro, Ilya L. Shapiro
Format: Article
Language:English
Published: Elsevier 2015-06-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269315003822