Good tachyons, bad bradyons: Role reversal in Einstein-nonlinear-electrodynamics models

In relativistic mechanics, the 4-velocity and the 4-momentum need not be parallel. This allows their norm to have a different sign. This possibility occurs in nonlinear electrodynamics (NED) models minimally coupled to Einstein's theory. Surprisingly, for a large class of NED models with a Maxw...

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Bibliographic Details
Main Authors: Marco A.A. de Paula, Haroldo C.D. Lima Junior, Pedro V.P. Cunha, Carlos A.R. Herdeiro, Luís C.B. Crispino
Format: Article
Language:English
Published: Elsevier 2025-07-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269325002746
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