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On the ambiguities in the effective action in Lorentz-violating gravity
classification
✦ hep-th
keywords
ambiguitieslorentz-violatingtermaccompaniedactionarbitrarinesschern-simonschoice
read the original abstract
We investigate the occurrence of ambiguities for Lorentz-violating gravitational Chern-Simons term. It turns out that this term is accompanied by a coefficient depending on an undetermined parameter, due to an arbitrariness in the choice of the conserved current.
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