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Article

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Published version

Publication date

2024

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/220650

Causal self-dual electrodynamics

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https://doi.org/10.1103/PhysRevD.109.105023

Abstract

Many theories of nonlinear electrodynamics (NLED) that have been proposed in physical contexts involving strong fields are causal for weak fields but acausal for strong fields. We show that for any such theory there is a unique causal and self-dual (electromagnetic duality invariant) theory with the same Lagrangian at zero magnetic field. This follows from a construction of the general causal self-dual NLED, which shows that strong-field causality is implied by weak-field causality for self-dual theories. We illustrate our results with explicit examples.

Subject

Electrodinàmica, Teoria de camps (Física), Teoria quàntica de camps

Subject (English)

Electrodynamics, Field theory (Physics), Quantum field theory

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Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

Citation

RUSSO, J. G. (Jorge Guillermo) and TOWNSEND, Paul K. Causal self-dual electrodynamics. Physical Review D. 2024. Vol. 109, num. 105023. ISSN 2470-0010. [consulted: 12 of August of 2026]. Available at: https://hdl.handle.net/2445/220650

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