Dualities of self-dual nonlinear electrodynamics

Abstract For any causal nonlinear electrodynamics theory that is “self-dual” (electromagnetic U(1)-duality invariant), the Legendre-dual pair of Lagrangian and Hamiltonian densities L H $$ \left\{\mathcal{L},\mathcal{H}\right\} $$ are constructed from functions ℓ h $$ \left\{\ell, \mathfrak{h}\right...

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Main Authors: Jorge G. Russo, Paul K. Townsend
Format: Article
Language:English
Published: SpringerOpen 2024-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP09(2024)107
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author Jorge G. Russo
Paul K. Townsend
author_facet Jorge G. Russo
Paul K. Townsend
author_sort Jorge G. Russo
collection DOAJ
description Abstract For any causal nonlinear electrodynamics theory that is “self-dual” (electromagnetic U(1)-duality invariant), the Legendre-dual pair of Lagrangian and Hamiltonian densities L H $$ \left\{\mathcal{L},\mathcal{H}\right\} $$ are constructed from functions ℓ h $$ \left\{\ell, \mathfrak{h}\right\} $$ on ℝ + related to a particle-mechanics Lagrangian and Hamiltonian. We show how a ‘duality’ relating ℓ to h $$ \mathfrak{h} $$ implies that L $$ \mathcal{L} $$ and H $$ \mathcal{H} $$ are related by a simple map between appropriate pairs of variables. We also discuss Born’s “Legendre self-duality” and implications of a new “Φ-parity” duality. Our results are illustrated with many examples.
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spelling doaj-art-859be989088241f48942e352235c7e452024-12-08T12:16:42ZengSpringerOpenJournal of High Energy Physics1029-84792024-09-012024914110.1007/JHEP09(2024)107Dualities of self-dual nonlinear electrodynamicsJorge G. Russo0Paul K. Townsend1Institució Catalana de Recerca i Estudis Avançats (ICREA)Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of CambridgeAbstract For any causal nonlinear electrodynamics theory that is “self-dual” (electromagnetic U(1)-duality invariant), the Legendre-dual pair of Lagrangian and Hamiltonian densities L H $$ \left\{\mathcal{L},\mathcal{H}\right\} $$ are constructed from functions ℓ h $$ \left\{\ell, \mathfrak{h}\right\} $$ on ℝ + related to a particle-mechanics Lagrangian and Hamiltonian. We show how a ‘duality’ relating ℓ to h $$ \mathfrak{h} $$ implies that L $$ \mathcal{L} $$ and H $$ \mathcal{H} $$ are related by a simple map between appropriate pairs of variables. We also discuss Born’s “Legendre self-duality” and implications of a new “Φ-parity” duality. Our results are illustrated with many examples.https://doi.org/10.1007/JHEP09(2024)107Duality in Gauge Field TheoriesEffective Field Theories
spellingShingle Jorge G. Russo
Paul K. Townsend
Dualities of self-dual nonlinear electrodynamics
Journal of High Energy Physics
Duality in Gauge Field Theories
Effective Field Theories
title Dualities of self-dual nonlinear electrodynamics
title_full Dualities of self-dual nonlinear electrodynamics
title_fullStr Dualities of self-dual nonlinear electrodynamics
title_full_unstemmed Dualities of self-dual nonlinear electrodynamics
title_short Dualities of self-dual nonlinear electrodynamics
title_sort dualities of self dual nonlinear electrodynamics
topic Duality in Gauge Field Theories
Effective Field Theories
url https://doi.org/10.1007/JHEP09(2024)107
work_keys_str_mv AT jorgegrusso dualitiesofselfdualnonlinearelectrodynamics
AT paulktownsend dualitiesofselfdualnonlinearelectrodynamics