Hawking Radiation from Universal Horizons
arXiv:2101.00028 · doi:10.1007/JHEP04(2021)255
Abstract
The persistence of a suitable notion of black hole thermodynamics in Lorentz breaking theories of gravity is not only a non-trivial consistency test for such theories, it is also an interesting investigation {\em per se}, as it might help us identifying the crucial features at the root of these surprising laws governing such purely gravitational objects. In past investigations, controversial findings were presented in this sense. With the aim of settling this issue, we present here two complementary derivations of Hawking radiation in geometries endowed with universal horizons: a novel feature of back holes in Lorentz breaking theories of gravity which reproduces several properties normally characterizing Killing horizons. We find that both the derivations agree on the fact that the Hawking temperature associated to these geometries is set by the generalized universal horizon peeling surface gravity, as required for consistency with extant derivations of the first law of thermodynamics for these black holes. We shall also comment on the compatibility of our results with previous alternative derivations and on their significance for the survival of the generalized second law of black hole thermodynamics in Lorentz breaking theories of gravity.
arXiv comment29 pages, 4 figures
References in corpus (41)
- The Confrontation between General Relativity and Experiment
- Hawking Radiation as Tunneling
- Modern tests of Lorentz invariance
- Gravity with a dynamical preferred frame
- A healthy extension of Horava gravity
- Tests of Lorentz invariance: a 2013 update
- Models of non-relativistic quantum gravity: the good, the bad and the healthy
- Lorentz-Violating Vector Fields Slow the Universe Down
- On the Extra Mode and Inconsistency of Horava Gravity
- Fate of gravitational collapse in semiclassical gravity
- Spontaneous breaking of Lorentz invariance, black holes and perpetuum mobile of the 2nd kind
- Strong Binary Pulsar Constraints on Lorentz Violation in Gravity
- Horava gravity vs. thermodynamics: the black hole case
- Lifshitz Gravity for Lifshitz Holography
- Constraints on Einstein-aether theory after GW170817
- Mechanics of universal horizons
- Hořava Gravity after GW170817
- Relativistic Bose-Einstein Condensates: a new system for analogue models of gravity
- The universe as a quantum gravity condensate
- Lorentz violation and perpetual motion
- Slowly rotating black holes in Horava-Lifshitz gravity
- Slowly rotating black holes in Einstein-æther theory
- Towards thermodynamics of universal horizons in Einstein-æther theory
- Gravitational Radiation in Horava Gravity
- Dynamical Emergence of Universal Horizons during the formation of Black Holes
- Partial accretion in the propeller stage of low mass X-ray binary Aql X--1
- Ray tracing Einstein-Æther black holes: Universal versus Killing horizons
- Surface gravities for non-Killing horizons
- Black Hole Thermodynamics and Lorentz Symmetry
- Constraints on Hořava gravity from binary black hole observations
- Black hole radiation in the presence of a universal horizon
- Hawking radiation of charged Einstein-aether black holes at both Killing and universal horizons
- Post-Newtonian constraints on Lorentz-violating gravity theories with a MOND phenomenology
- Universal horizons in maximally symmetric spaces
- The relation between general relativity and a class of Hořava gravity theories
- On the first law of black holes with a universal horizon
- Asymptotically Lifshitz spacetimes with universal horizons in dimensions
- Dynamical obstruction to perpetual motion from Lorentz-violating black holes
- Causal hierarchy in modified gravity
- Dispersion relation and surface gravity of universal horizons
- Constructing entanglement wedges for Lifshitz spacetimes with Lifshitz gravity
Cited by in corpus (12)
- Regular Black Holes and Horizonless Ultra-Compact Objects in Lorentz-Violating Gravity
- Hawking Radiation in Lorentz Violating Gravity: A Tale of Two Horizons
- Time Orientability and Particle Production from Universal Horizons
- Gravitational Tunneling in Lorentz Violating Gravity
- AEther as an Inevitable Consequence of Quantum Gravity
- On optical appearance of Einstein-Maxwell-Æther black holes surrounded by various accretions
- On the Resilience of Black Hole Evaporation: Gravitational Tunneling through Universal Horizons
- Exploring black hole mechanics in cotangent bundle geometries
- Deep Learning solutions to singular ordinary differential equations: from special functions to spherical accretion
- Rescuing the Unruh Effect in Lorentz Violating Gravity
- On the energy flow of in Hořava-Lifshitz cosmology
- Rotating Black Holes in Three-Dimensional Horava Gravity Revisited