Near-extremal dumb holes and some aspects of the Hawking effect
- URL: http://arxiv.org/abs/2502.13557v1
- Date: Wed, 19 Feb 2025 09:04:44 GMT
- Title: Near-extremal dumb holes and some aspects of the Hawking effect
- Authors: Akshat Pandey,
- Abstract summary: We study the back-reaction effects of analogue Hawking radiation emitted from extremal and near-extremal black holes.
We speculate on the existence of an emergent Hawking force which leads to the reduction in the background fluid velocity.
- Score: 1.1672776958819344
- License:
- Abstract: We propose novel non-relativistic fluid analogue models, that is dumb hole models, for extremal and near-extremal black holes. Further we study the back-reaction effects of analogue Hawking radiation emitted from these dumb holes. We discuss and quantify the reduction in the background fluid velocity caused by radiation of Hawking phonons. In doing so, we speculate on the existence of an emergent Hawking force which leads to the reduction in the background fluid velocity and which is produced as a consequence of phonon emission. In addition to the analogue gravity literature, our results might be of relevance to black hole pedagogy.
Related papers
- The information loss problem and Hawking radiation as tunneling [0.0]
We revisit the solution based on Hawking radiation as tunneling.
We show that black hole evaporation is governed by a time-dependent Schrodinger equation.
arXiv Detail & Related papers (2025-02-14T05:25:46Z) - Paradox No More: How Stimulated Emission of Radiation Preserves Information Absorbed by Black Holes [0.0]
Black holes have been implicated in two paradoxes that involve apparently non-unitary dynamics.
We show that this paradox is due to a mistake in Hawking's original derivation.
Resurrecting the contribution of stimulated emission makes it possible to calculate the (positive) classical information transmission capacity of black holes.
arXiv Detail & Related papers (2025-02-08T17:06:36Z) - Ultracold Neutrons in the Low Curvature Limit: Remarks on the
post-Newtonian effects [49.1574468325115]
We apply a perturbative scheme to derive the non-relativistic Schr"odinger equation in curved spacetime.
We calculate the next-to-leading order corrections to the neutron's energy spectrum.
While the current precision for observations of ultracold neutrons may not yet enable to probe them, they could still be relevant in the future or in alternative circumstances.
arXiv Detail & Related papers (2023-12-30T16:45:56Z) - Hawking radiation from an analogue bouncing geometry [0.0]
We propose a setting that simulates Hawking radiation from an analogue bouncing geometry.
The proposed setup consists of a coplanar waveguide terminated in superconducting quantum-interference devices at both ends.
arXiv Detail & Related papers (2023-06-08T14:46:17Z) - Observation of false vacuum decay via bubble formation in ferromagnetic
superfluids [47.187609203210705]
In quantum field theory, the decay of an extended metastable state into the real ground state is known as false vacuum decay''
Here, we observe bubble nucleation in isolated and highly controllable superfluid atomic systems.
arXiv Detail & Related papers (2023-05-09T07:41:08Z) - AnaBHEL (Analog Black Hole Evaporation via Lasers) Experiment: Concept,
Design, and Status [37.89976990030855]
Accelerating relativistic mirror has long been recognized as a viable setting where the physics mimics that of black hole Hawking radiation.
Chen and Mourou proposed a novel method to realize such a system by traversing an ultra-intense laser through a plasma target with a decreasing density.
An international AnaBHEL Collaboration has been formed with the objectives of observing the analog Hawking radiation and shedding light on the information loss paradox.
arXiv Detail & Related papers (2022-05-24T16:49:43Z) - Light-shift induced behaviors observed in momentum-space quantum walks [47.187609203210705]
We present a theoretical model which proves that the coherent dynamics of the spinor condensate is sufficient to explain the experimental data.
Our numerical findings are supported by an analytical prediction for the momentum distributions in the limit of zero-temperature condensates.
arXiv Detail & Related papers (2022-05-16T14:50:05Z) - Analogue Penrose process in rotating acoustic black Hole [0.0]
We consider the analogue Penrose process in a rotating acoustic black hole based on a quantum fluid.
By defining the effective Komar mass and angular momentum of this acoustic black hole, we found that energy can be extracted from it.
arXiv Detail & Related papers (2022-05-03T12:32:11Z) - Analogue quantum simulation of the Hawking effect in a polariton
superfluid [20.510844044566305]
We show how out-of-equilibrium physics affects the dispersion relation, and hence the emission and propagation of correlated waves.
We find that emission may be optimised by supporting the phase and density of the fluid upstream of the horizon in a regime of optical bistability.
arXiv Detail & Related papers (2022-01-06T13:07:03Z) - Quantum vacuum excitation of a quasi-normal mode in an analog model of
black hole spacetime [19.767470853445776]
We use a driven-dissipative quantum fluid of microcavity polaritons as an analog model of a quantum field theory on a black-hole spacetime.
We show that, in addition to the Hawking effect at the sonic horizon, quantum fluctuations may result in a sizeable stationary excitation of a quasi-normal mode of the field theory.
arXiv Detail & Related papers (2021-10-27T14:16:12Z) - Hawking radiation for a (2+1)-dimensional spinning black hole and the
issue of tunneling [0.0]
We examine Hawking radiation for a (2+1)-dimensional spinning black hole.
We study the possibility of tunneling through the event horizon which acts as a classically forbidden barrier.
arXiv Detail & Related papers (2021-05-26T09:24:51Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.