Results 11 to 20 of about 2,648,408 (181)

Quantum Cosmology [PDF]

open access: yes, 1993
An elementary review of quantum cosmology. (Talk given at Texas/Pascos 1992 at Berkeley)
arxiv   +3 more sources

The Quantum Memory Matrix: A Unified Framework for the Black Hole Information Paradox [PDF]

open access: yesEntropy
We present the Quantum Memory Matrix (QMM) hypothesis, which addresses the longstanding Black Hole Information Paradox rooted in the apparent conflict between Quantum Mechanics (QM) and General Relativity (GR).
Florian Neukart   +2 more
doaj   +2 more sources

Exactly solvable quantum cosmologies from two killing field reductions of general relativity

open access: closedNuclear Physics B, 1989
Abstract An exact and, possibly, general solution to the quantum constraints is given for the sector of general relativity containing cosmological solutions with two space-like, commuting, Killing fields. The dynamics of these model space-times, which are known as Gowdy space-times, is formulated in terms of Ashtekar's new variables. The quantization
Viqar Husain, Lee Smolin
openaire   +3 more sources

General relativity and quantum fields: some aspects of black holes physics and cosmology in Lovelock gravity, de Sitter spaces and extra-dimensions [PDF]

open access: green, 2006
At the frontier of modern physics, the black hole evaporation process is undoubtedly the most favored phenomenon to get informations on quantum gravity. After a brief introduction to Einstien's General Relativity and to one of its extension as a Taylor expansion in scalar curvature, this thesis deals with the Hawking process focusing on the computation
Julien Grain
openaire   +2 more sources

Hybrid Loop Quantum Cosmology: An Overview

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Loop Quantum Gravity is a nonperturbative and background independent program for the quantization of General Relativity. Its underlying formalism has been applied successfully to the study of cosmological spacetimes, both to test the principles and ...
Beatriz Elizaga Navascués   +1 more
doaj   +1 more source

Gauge-Invariant Perturbations at a Quantum Gravity Bounce

open access: yesUniverse, 2022
We study the dynamics of gauge-invariant scalar perturbations in cosmological scenarios with a modified Friedmann equation, such as quantum gravity bouncing cosmologies.
Steffen Gielen, Lisa Mickel
doaj   +1 more source

A Rotating Model of a Light Speed Expanding Hubble-Hawking Universe

open access: yesPhysical Sciences Forum, 2023
Based on light speed expansion, a modified red shift formula, a scaled Hawking’s black hole temperature formula, the super gravity of galactic baryon matter and baby Planck ball, in our recent publications we have clearly established a novel model of ...
U. V. Satya Seshavatharam   +1 more
doaj   +1 more source

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