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hep-th2026
Bounds on nonlinear electrodynamics via resummed relative entropy
Pietro Conzinu, Daiki Ueda
We investigate nonlinear electrodynamic effective field theories (EFTs) through the relative entropy evaluated in suitable background electromagnetic fields. In this setup, the rel…
hep-th2026
Bounds on nonlinear effective field theories via resurgent relative entropy
Pietro Conzinu, Daiki Ueda
We study nonlinear effective field theories (EFTs) with factorially growing perturbative expansions, focusing on a class in which the relative entropy encodes an infinite tower of…
hep-th2024
Consistency of EFT illuminated via relative entropy: A case study in scalar field theory
Daiki Ueda, Kazuhiro Tatsumi
Relative entropy is a non-negative quantity and offers a powerful means of achieving a unified understanding of fundamental properties in physics, including the second law of therm…