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According to this principle, the relativistic changes occurring to the bodies, after velocity changes, cannot be detected by observers moving with them because bodies and stationary radiations change in identical proportion after identical…

综合物理 · 物理学 2007-05-23 Rafael A. Vera

We give a comparative description of different types of regular static, spherically symmetric black holes (BHs) and discuss in more detail their particular type, which we suggest to call black universes. The latter have a Schwarzschild-like…

广义相对论与量子宇宙学 · 物理学 2008-11-26 K. A. Bronnikov , H. Dehnen , V. N. Melnikov

A simple model of a universe is presented composed of black holes and black branes. It uses the most simplest approximations and models of General Relativity and Quantum Dynamics to offer an idea of an unification and gives a possible…

天体物理学 · 物理学 2007-05-23 H. Genreith

An extremely simple and unified base for physics comes out by starting all over from a single postulate on the common nature of matter and stationary forms of radiation quanta. Basic relativistic, gravitational (G) and quantum mechanical…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Rafael A. Vera

An exact solution representing black holes in an expanding universe is found. The black holes are maximally charged and the universe is expanding with arbitrary equation of state. It is an exact solution of the Einstein-scalar-Maxwell…

广义相对论与量子宇宙学 · 物理学 2010-06-14 Gary W. Gibbons , Kei-ichi Maeda

In this paper we explore the idea that black holes can persist in a universe that collapses to a big crunch and then bounces into a new phase of expansion. We use a scalar field to model the matter content of such a universe {near the time}…

广义相对论与量子宇宙学 · 物理学 2017-06-28 Timothy Clifton , Bernard Carr , Alan Coley

Hawking particles emitted by a black hole are usually found to have thermal spectra, if not exactly, then by a very good approximation. Here, we argue differently. It was discovered that spherical partial waves of in-going and out-going…

广义相对论与量子宇宙学 · 物理学 2016-12-28 Gerard 't Hooft

Both from gravitational (G) experiments and from a new theoretical approach based on a particle model it is proved that the classical invariability of the bodies, after a change of relative rest-position with respect to other bodies, it is…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Rafael A. Vera

The classic black hole mechanics and thermodynamics are formulated for stationary black holes with event horizons. Alternative theories of gravity of interest for cosmology contain a built-in time-dependent cosmological "constant" and black…

广义相对论与量子宇宙学 · 物理学 2018-10-12 Valerio Faraoni

A variety of scenarios for early-universe cosmology give rise to a population of primordial black holes (PBHs) with a broad spectrum of masses. The evaporation of PBHs in such scenarios has the potential to place the universe into an…

宇宙学与河外天体物理 · 物理学 2025-10-13 Keith R. Dienes , Lucien Heurtier , Fei Huang , Doojin Kim , Tim M. P. Tait , Brooks Thomas

The Primordial Black Holes (PBHs) are gradually involved into consideration as the phenomenon having reliable basis. We discuss here the possibility of their agglomeration into clusters that may have several prominent observable features.…

Atoms and the planets acquire their stability from the quantum mechanical incompatibility of the position and momentum measurements. This incompatibility is expressed by the fundamental commutator [x, p_x]=i hbar, or equivalently, via the…

天体物理学 · 物理学 2008-11-26 D. V. Ahluwalia

If spacetime torsion couples to the intrinsic spin of matter according to the Einstein-Cartan-Sciama-Kibble theory of gravity, then the resulting gravitational repulsion at supranuclear densities prevents the formation of singularities in…

宇宙学与河外天体物理 · 物理学 2011-10-26 Nikodem J. Poplawski

We investigate the physics of black holes in the light of the quantum theoretical framework proposed in [1]. It is argued that black holes are completely non-local objects, and that the only one which really exists is the universe itself.

综合物理 · 物理学 2010-07-01 Andrea Gregori

The gravitational force harbours a fundamental instability against collapse. In standard General Relativity without Quantum Mechanics, this implies the existence of black holes as natural, stable solutions of Einstein's equations. If one…

广义相对论与量子宇宙学 · 物理学 2017-08-23 Gerard 't Hooft

We construct exact, entropy satisfying shock wave solutions of the Einstein equations for a perfect fluid which extend the Oppeheimer-Snyder (OS) model to the case of non-zero pressure, {\it inside the Black Hole}. These solutions put forth…

数学物理 · 物理学 2007-05-23 Joel Smoller , Blake Temple

Black holes are one of the most fascinating predictions of general relativity. They are the natural product of the complete gravitational collapse of matter and today we have a body of observational evidence supporting the existence of…

广义相对论与量子宇宙学 · 物理学 2023-07-26 Cosimo Bambi

We track the evolution of entropy and black holes in a cyclic universe that undergoes repeated intervals of expansion followed by slow contraction and a smooth (non-singular) bounce. In this kind of cyclic scenario, there is no big crunch…

广义相对论与量子宇宙学 · 物理学 2022-05-09 Anna Ijjas , Paul J. Steinhardt

We prove the existence of general relativistic perfect fluid black hole solutions, and demonstrate the phenomenon for the $P=w\rho$ class of equations of state. While admitting a local time-like Killing vector on the event horizon itself,…

广义相对论与量子宇宙学 · 物理学 2012-11-28 Aharon Davidson , Shimon Rubin , Yosef Verbin

Using the result obtained in a prevoius paper, in which I found an upper limit on the region of particle creation in the vicinity of the event horizon of a Schwarzschild black hole, and by assuming that all the created energy will be…

广义相对论与量子宇宙学 · 物理学 2010-04-30 M. B. Altaie
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