Stimulated Hawking radiation in an analogue black hole in a Bose-Einstein condensate was reported seven years ago, and it was claimed that the stimulation was of the black hole lasing variety. The study was based on observation of rapidly-growing neg...
The Unruh vacuum not admitting any outgoing flux at the horizon implies that the origin of the outgoing Hawking radiation is the atmosphere of a near-horizon quantum region without resort to the firewall; however, the existence of the firewall of sup...
We study Hartle-Hawking-like states of quantum field theories on asymptotically AdS black hole backgrounds, with particular regard to the phase structure of interacting theories. By a suitable analytic continuation we show that the equilibrium dynami...
In this paper we present a simple but non-simplistic model of gravitational collapse with thermal emission of pre-Hawking radiation. We apply Einstein equations to a time-dependant spherically symmetric metric and an ultrarelativistic stress-energy t...
May 1, 2018 · D would also work though. "Stephen Hawking believes that the earth is unlikely to be the only planet whose life has developed gradually" -- this has a somewhat different meaning (it implies …
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 quan...
A Brief History of Time: From the Big Bang to Black Holes is a book on cosmology by the physicist Stephen Hawking, first published in 1988. Hawking writes
The decay widths of the quantum black hole precursors, determined from the poles of the resummed graviton propagator, are matched to the expected lifetime given by the Hawking decay. In this way, we impose a sort of duality between a perturbative des...
Hawking proposed that the cosmological constant is probably zero in quantum cosmology. Duff claimed that Hawking's proof is invalidated. Using the right configuration for the wave function of the universe, we provide a complete proof....
Feb 6, 2026 · Stephen Hawking, the brilliant British physicist and cosmologist, revolutionized our understanding of black holes and the universe through his groundbreaking research and resilience in …
Between 1974 and 1975, Stephen Hawking revolutionized the world of physics by proposing that black holes have temperature, entropy, and evaporate gradually. The objective of this article is to offer a brief and updated introduction to these three rem...
We extend the the concept of Hawking-Moss, or up-tunnelling, transitions in the early universe to include black hole seeds. The black hole greatly enhances the decay amplitude, however, order to have physically consistent results, we need to impose a...
Prof Stephen Hawking, one of the world's leading scientists, warns that artificial intelligence "could spell the end of the human race".
We show a new property of sonic black holes. After deriving the metric of a sonic black hole from the Schrodinger equation and quantizing the perturbation fields near the sonic event horizon, we show particles of Hawking radiation can act as a sour...
The recent interest in ``time machines'' has been largely fueled by the apparent ease with which such systems may be formed in general relativity, given relatively benign initial conditions such as the existence of traversable wormholes or of infin...
"The universe doesn't allow perfection." ― Stephen Hawking (⭐ 53)
The banquet for the July 2017 conference in Cambridge, UK celebrating Stephen Hawking's 75th birthday was held in Trinity College on July 3rd. The organizers asked the author, among others, to give a 10 minute after dinner talk on what it was like to...
Oct 29, 2023 · The question should be 'How can something come out of nothing' not 'Why cannot something come out of nothing'. Stephen Hawkings has recently argued as to how the universe can …
We compute the energy of 2+1 Minkowski space from a covariant action principle. Using Ashtekar and Varadarajan's characterization of 2+1 asymptotic flatness, we first show that the 2+1 Einstein-Hilbert action with Gibbons-Hawking boundary term is b...
A recently proposed generalized entropy by Luciano and Saridakis extends the standard Boltzmann-Gibbs and Bekenstein-Hawking framework through a microscopically motivated construction involving two independent entropic exponents. When applied within...