Results 131 to 140 of about 1,342,913 (205)

Modular Theory, Non-Commutative Geometry and Quantum Gravity

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
This paper contains the first written exposition of some ideas (announced in a previous survey) on an approach to quantum gravity based on Tomita-Takesaki modular theory and A.
Wicharn Lewkeeratiyutkul   +2 more
doaj   +1 more source

Gravitational length stretching: Curvature-induced modulation of quantum probability densities

open access: yesOpen Physics
We introduce gravitational length stretching (GLS) as a novel quantum-gravitational phenomenon that distorts the spatial probability distribution of quantum particles in curved spacetime.
Li Benliang
doaj   +1 more source

Black holes in loop quantum gravity: covariant holonomy corrections

open access: yes
Most potential physical implications of loop quantum gravity (LQG) have been derived within effective models that modify the constraints of canonical general relativity in specific ways.
Belfaqih, Idrus Husin
core   +1 more source

Geometry Transition in Covariant Loop Quantum Gravity

open access: yes, 2018
PhD thesis submitted for the degree of Doctor in Theoretical and Mathematical Physics. Defended at the Center for Theoretical Physics/CNRS/Aix-Marseille University, the 23rd of October 2017.
openaire   +3 more sources

A quantum theory of gravity

open access: yesEuropean Physical Journal C: Particles and Fields
We develop a covariant Hamiltonian formalism in which evolution is measured along the proper-time flow of an observer congruence, replacing the external coordinate-time derivative with the Lie derivative. Our formalism keeps the Hamiltonian split between
Antonio Peña Peña
doaj   +1 more source

The landscape of complexity measures in 2D gravity

open access: yesJournal of High Energy Physics
We investigate the broad landscape of holographic complexity measures for theories dual to two-dimensional (2D) dilaton gravity. Previous studies have largely focused on the complexity=volume and complexity=action proposals for holographic complexity ...
Elena Cáceres   +4 more
doaj   +1 more source

Covariant Loop Quantum Gravity

open access: yes, 2017
In this thesis we offer a broad introduction into loop quantum gravity against the backdrop of the quantum gravity research as a whole. We focus on both the canonical and covariant version of the theory.
Irinkov, Pavel
core  

Covariant quantum mechanics as a tool for quantum-gravity phenomenology

open access: yes, 2017
Covariant quantum mechanics (CQM) is a background-indipendent reformulation of quantum mechanics in which the time coordinate is treated as a dynamical degree of freedom, rather than an external evolution parameter. CQM was originally conceived and developed as a basic relational quantum formalism for discussing some conceptual issues associated with ...
openaire   +1 more source

Discrete symmetries in covariant loop quantum gravity [PDF]

open access: yesPhysical Review D, 2012
Carlo Rovelli, Edward Wilson-Ewing
openaire   +1 more source

Gravitational Lensing Effects from Models of Loop Quantum Gravity with Rigorous Quantum Parameters

open access: yes
Many previous works have studied gravitational lensing effects from Loop Quantum Gravity. So far, gravitational lensing effects from Loop Quantum Gravity have only been studied by choosing large quantum parameters much larger than the Planck scale ...
Haida Li, Xiangdong Zhang
core   +1 more source

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