Eductions of Edge Mode Effects

V.P. Nair

Eductions of Edge Mode Effects

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arxiv 2210.14137 v1 pith:A6G6FNN3 submitted 2022-10-25 hep-th math-phmath.MP

V.P. Nair This is my paper · ORCID

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Edge modes in gauge theories, whose raison d'etre is in the nature of the test functions used for imposing the Gauss law, have implications in many physical contexts. I discuss two such cases: 1) how edge modes are related to the interface term in the BFK formula and how they generate the so-called contact term for entanglement entropy in gauge theories, 2) how they describe the dynamics of particles in generalizing the Einstein-Infeld-Hoffmann approach to particle dynamics in theories of gravity.

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Dynamical edge modes in Maxwell theory from a BRST perspective, with an application to the Casimir energy
hep-th 2024-12 conditional novelty 6.0 of 10

DEM boundary conditions on two parallel plates yield the same Casimir energy as perfectly conducting plates, after restoring BRST invariance with boundary ghost fields.

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