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- W2890821059 abstract "We calculate the divergent part of the one-loop effective action in curved spacetime for a particular class of second-order vector field operators with a degenerate principal part. The principal symbol of these operators has the structure of a longitudinal projector. In this case, standard heat-kernel techniques are not directly applicable. We present a method which reduces the problem to a nondegenerate scalar operator for which standard heat-kernel techniques are available. Interestingly, this method leads to the identification of an effective metric structure in the longitudinal sector. The one-loop divergences are compactly expressed in terms of invariants constructed from this metric." @default.
- W2890821059 created "2018-09-27" @default.
- W2890821059 creator A5063316922 @default.
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- W2890821059 date "2018-10-17" @default.
- W2890821059 modified "2023-10-03" @default.
- W2890821059 title "Quantum effective action for degenerate vector field theories" @default.
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- W2890821059 doi "https://doi.org/10.1103/physrevd.98.085014" @default.
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