Nonperturbative Isentropic Processes in AdS Black Holes with Nonlinear Electrodynamics

Abstract

We study the isentropic processes in a class of Anti de Sitter black holes coupled to non-linear electrodynamics. We demonstrate that such processes are classically forbidden but can proceed via quantum mechanical tunnelling. We compute the Euclidean action associated with the tunnelling process and analyze its dependence on the black hole charge, horizon radius, and the non-linear electrodynamics parameters characterizing each model. We find that the tunnelling probability is increasingly suppressed as the strength of the non-linearity is enhanced. We further find that smaller black holes exhibit a significantly higher tunnelling probability compared to larger ones, indicating a departure from classical behaviour. We conjecture that this behaviour may be universal across a broad class of black hole spacetimes. We discuss the implications of our results for entropy bounds and their potential relevance to the black hole information loss paradox.

25 pages, 8 figures

References in corpus (18)

• Some Properties of Noether Charge and a Proposal for Dynamical Black Hole Entropy
• Comments on the Sachdev-Ye-Kitaev model
• Black Holes: Complementarity or Firewalls?
• Regular Magnetic Black Holes and Monopoles from Nonlinear Electrodynamics
• A Covariant Entropy Conjecture
• The Page curve of Hawking radiation from semiclassical geometry
• Bekenstein-Hawking Entropy and Strange Metals
• Entropy Bounds and Black Hole Remnants
• Proof of Classical Versions of the Bousso Entropy Bound and of the Generalized Second Law
• Observations of Hawking radiation: the Page curve and baby universes
• A Causal Entropy Bound
• Semi-classical black holes with large N re-scaling and information loss problem
• NED-AdS black holes, extended phase space thermodynamics and Joule--Thomson expansion
• Bound states and the Bekenstein bound
• Covariant entropy bound beyond general relativity
• A proof of the Bekenstein bound for any strength of gravity through holography
• What exactly does Bekenstein bound?
• Isentropic processes for axisymmetric Black Holes