Conformal anomaly from gauge fields without gauge fixing
Conformal anomaly from gauge fields without gauge fixing
We show how the Weyl anomaly generated by gauge fields, can be computed from manifestly gauge invariant and diffeomorphism invariant exact renormalization group equations, without having to fix the gauge at any stage. Regularization is provided by covariant higher derivatives and by embedding the Maxwell field into a spontaneously broken U(1|1) supergauge theory. We first provide a realization that leaves behind two versions of the original U(1) gauge field, and then construct a manifestly U(1|1) supergauge invariant flow equation which leaves behind only the original Maxwell field in the spontaneously broken regime.
Falls, Kevin
2511c01a-cb52-4ba4-a81f-f9aaf22cc975
Morris, Tim R.
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Falls, Kevin
2511c01a-cb52-4ba4-a81f-f9aaf22cc975
Morris, Tim R.
a9927d31-7a12-4188-bc35-1c9d3a03a6a6
Falls, Kevin and Morris, Tim R.
(2018)
Conformal anomaly from gauge fields without gauge fixing.
Physical Review D, 97 (6), [065013].
(doi:10.1103/PhysRevD.97.065013).
Abstract
We show how the Weyl anomaly generated by gauge fields, can be computed from manifestly gauge invariant and diffeomorphism invariant exact renormalization group equations, without having to fix the gauge at any stage. Regularization is provided by covariant higher derivatives and by embedding the Maxwell field into a spontaneously broken U(1|1) supergauge theory. We first provide a realization that leaves behind two versions of the original U(1) gauge field, and then construct a manifestly U(1|1) supergauge invariant flow equation which leaves behind only the original Maxwell field in the spontaneously broken regime.
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Conformal anomaly from gauge �elds without
- Accepted Manuscript
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PhysRevD.97.065013
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Accepted/In Press date: 15 March 2018
e-pub ahead of print date: 19 March 2018
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AM added. Record should now be complete.
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Local EPrints ID: 419636
URI: http://eprints.soton.ac.uk/id/eprint/419636
ISSN: 2470-0010
PURE UUID: 4768b8c8-13ed-44a6-b2a5-14728c94d7b4
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Date deposited: 17 Apr 2018 16:30
Last modified: 01 Mar 2024 02:33
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Author:
Kevin Falls
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