Results 101 to 110 of about 1,549,437 (171)

Phase transitions and geothermodynamics of black holes in dRGT massive gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
In this paper, we study the thermodynamics and geothermodynamics of spherical black hole solutions in dRGT massive gravity in a new extended phase space. Inspire by the work of Kastor et al.
M. Chabab   +3 more
doaj   +1 more source

Recent developments in canonical quantum gravity [PDF]

open access: yesAIP Conference Proceedings, 1995
We give a summary of the nonperturbative approach to quantum gravity based on Ashtekar’s new variables and loop quantization, intended for a general audience of physicists. We discuss the possible connections of this approach with other areas of physics and the basic ideas of quantizing the gravitational field.
openaire   +1 more source

Relational Observables in Gravity: a Review

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
We present an overview on relational observables in gravity mainly from a loop quantum gravity perspective. The gauge group of general relativity is the diffeomorphism group of the underlying manifold.
Johannes Tambornino
doaj   +1 more source

In search of lost spacetime: philosophical issues arising in quantum gravity [PDF]

open access: yes, 2011
This paper issues a call to arms and seeks to entice the reader with some of the most captivating philosophical puzzles arising in quantum gravity. The analysis will be prefaced, in Section 1, by general considerations concerning the need for finding a ...
Wuthrich, Christian
core  

From Quantum Codes to Gravity: A Journey of Gravitizing Quantum Mechanics

open access: yes, 2021
In this note, I review a recent approach to quantum gravity that “gravitizes” quantum mechanics by emerging geometry and gravity from complex quantum states.
Chun-Jun Cao
core   +1 more source

The Holst spin foam model via cubulations

open access: yesNew Journal of Physics, 2012
Spin foam models are an attempt at a covariant or path integral formulation of canonical loop quantum gravity. The construction of such models usually relies on the Plebanski formulation of general relativity as a constrained BF theory and is based on ...
Aristide Baratin   +2 more
doaj   +1 more source

Cosmic censorship in quantum Einstein gravity [PDF]

open access: yes, 2017
We study the quantum gravity modification of the Kuroda-Papapetrou model induced by the running of the Newton’s constant at high energy in quantum Einstein gravity.
Koch, B.   +7 more
core   +1 more source

Symmetric configurations highlighted by collective quantum coherence

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
Recent developments in quantum gravity have shown the Lorentzian treatment to be a fruitful approach towards the emergence of macroscopic space-times. In this paper, we discuss another related aspect of the Lorentzian treatment: we argue that collective ...
Dennis Obster, Naoki Sasakura
doaj   +1 more source

Canonical “Loop” Quantum Gravity and Spin Foam Models [PDF]

open access: yes, 2000
The canonical ``loop'' formulation of quantum gravity is a mathematically well defined, background independent, non perturbative standard quantization of Einstein's theory of General Relativity. Some among the most meaningful results of the theory are: 1) the complete calculation of the spectrum of geometric quantities like the area and the volume and ...
openaire   +3 more sources

Algebraic Approach to Quantum Gravity: relative realism [PDF]

open access: yes, 2007
In the first of three articles, we review the philosophical foundations of an approach to quantum gravity based on a principle of representation-theoretic duality and a vaguely Kantian-Buddist perspective on the nature of physical reality which I have ...
Majid, Shahn
core  

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