Elizabeth Alexander
Alternative flow equation for the functional renormalization group
Alexander, Elizabeth; Millington, Peter; Nursey, Jordan; Saffin, Paul M.
Authors
Abstract
We derive an alternative to the Wetterich-Morris-Ellwanger equation by means of the two-particle irreducible (2PI) effective action, exploiting the method of external sources due to Garbrecht and Millington. The latter allows the two-point source of the 2PI effective action to be associated consistently with the regulator of the renormalization group flow. We show that this procedure leads to a flow equation that differs from that obtained in the standard approach based on the average one-particle irreducible effective action.
Citation
Alexander, E., Millington, P., Nursey, J., & Saffin, P. M. (2019). Alternative flow equation for the functional renormalization group. Physical Review D, 100(10), Article 101702(R). https://doi.org/10.1103/physrevd.100.101702
Journal Article Type | Article |
---|---|
Acceptance Date | Oct 25, 2019 |
Online Publication Date | Nov 27, 2019 |
Publication Date | Nov 27, 2019 |
Deposit Date | Nov 29, 2019 |
Publicly Available Date | Jan 13, 2020 |
Journal | Physical Review D |
Print ISSN | 2470-0010 |
Electronic ISSN | 2470-0029 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 100 |
Issue | 10 |
Article Number | 101702(R) |
DOI | https://doi.org/10.1103/physrevd.100.101702 |
Keywords | Physics and Astronomy (miscellaneous) |
Public URL | https://nottingham-repository.worktribe.com/output/3443762 |
Publisher URL | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.100.101702 |
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Alternative flow equation for the functional renormalization group
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Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
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