Escaping from the black hole?

Abstract

We show that if there exists a special kind of Born-Infeld type scalar field, then one can send information from inside a black hole. This information is encoded in perturbations of the field propagating in non-trivial scalar field backgrounds, which serves as a "new ether". Although the theory is Lorentz-invariant it allows, nevertheless, the superluminal propagation of perturbations with respect to the "new ether". We found the stationary solution for background, which describes the accretion of the scalar field onto a black hole. Examining the propagation of small perturbations around this solution we show the signals emitted inside the horizon can reach an observer located outside the black hole. We discuss possible physical consequences of this result.

4 pages, 2 figures, published version

References in corpus (2)

• Causality, Analyticity and an IR Obstruction to UV Completion
• Spontaneous breaking of Lorentz invariance, black holes and perpetuum mobile of the 2nd kind

Cited by in corpus (20)

• Infrared-modified gravities and massive gravitons
• Cuscuton: A Causal Field Theory with an Infinite Speed of Sound
• On causality and superluminal behavior in classical field theories. Applications to k-essence theories and MOND-like theories of gravity
• Causality and the speed of sound
• Lorentz violation and perpetual motion
• Gauge k-vortices
• Vacuum structure for scalar cosmological perturbations in Modified Gravity Models
• Attractor scenarios and superluminal signals in k-essence cosmology
• Bigravity and Lorentz-violating Massive Gravity
• On the formalism of dark energy accretion onto black- and worm-holes
• Lorentz violation and black-hole thermodynamics
• On Power Law Inflation in DBI Models
• Fine Tuning Free Paradigm of Two Measures Theory: K-Essence, Absence of Initial Singularity of the Curvature and Inflation with Graceful Exit to Zero Cosmological Constant State
• A Consistency Relation for Power Law Inflation in DBI models
• Bumpy black holes from spontaneous Lorentz violation
• Aspects of Infrared Modifications of Gravity
• Bridging geometries and potentials in DBI cosmologies
• From Quantum Hydrodynamics to Quantum Gravity
• Superluminal Travel Made Possible (in two dimensions)
• Gravitational Lorentz Violation and Superluminality via AdS/CFT Duality