Results 61 to 70 of about 640,772 (343)

Prelude to Simulations of Loop Quantum Gravity on Adiabatic Quantum Computers

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The article addresses the possibility of implementing spin network states, used in the loop quantum gravity approach to Planck scale physics on an adiabatic quantum computer.
Jakub Mielczarek
doaj   +1 more source

Quaternion-Loop Quantum Gravity [PDF]

open access: yesFoundations of Physics, 2009
It is shown that the Riemannian curvature of the 3-dimensional hypersurfaces in space-time, described by the Wilson loop integral, can be represented by a quaternion quantum operator induced by the SU(2) gauge potential, thus providing a justification for quaternion quantum gravity at the Tev energy scale.
F. S. Carvalho   +2 more
openaire   +3 more sources

Effective line elements and black-hole models in canonical loop quantum gravity [PDF]

open access: yesPhysical Review D, 2018
Canonical quantization is often used to suggest new effects in quantum gravity, in the dynamics as well as the structure of space-time. Usually, possible phenomena are first seen in a modified version of the classical dynamics, for instance in an ...
M. Bojowald   +2 more
semanticscholar   +1 more source

Operators of quantum-reduced loop gravity from the perspective of full loop quantum gravity [PDF]

open access: yesPhys. Rev. D 102, 106010 (2020), 2020
Quantum-reduced loop gravity is a model of loop quantum gravity, which - from the technical point of view - is characterized by the remarkably simple form of its basic operators. In this article we examine the operators of the quantum-reduced model from the perspective of full loop quantum gravity.
arxiv   +1 more source

Loop Quantum Gravity and Quantum Information

open access: yes, 2023
We summarize recent developments at the interface of quantum gravity and quantum information, and discuss applications to the quantum geometry of space in loop quantum gravity. In particular, we describe the notions of link entanglement, intertwiner entanglement, and boundary spin entanglement in a spin-network state.
Bianchi, Eugenio, Livine, Etera R.
openaire   +3 more sources

Loop Quantum Cosmology, Modified Gravity and Extra Dimensions

open access: yesUniverse, 2016
Loop quantum cosmology (LQC) is a framework of quantum cosmology based on the quantization of symmetry reduced models following the quantization techniques of loop quantum gravity (LQG).
Xiangdong Zhang
doaj   +1 more source

Quasinormal modes of a massive scalar field nonminimally coupled to gravity in the spacetime of self-dual black hole

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
In this work, we investigate the quasinormal modes for a massive scalar field with a nonminimal coupling with gravity in the spacetime of a loop quantum black hole, known as the self-dual black hole.
J. S. Santos, M. B. Cruz, F. A. Brito
doaj   +1 more source

Violation of the Holographic Principle in the Loop Quantum Gravity [PDF]

open access: yesEurophys. Lett. 113, 30007 (2016), 2015
In this paper, we analyze the holographic principle using loop quantum gravity (LQG). This will be done by using polymeric quantization for analysing the Yurtsever's holographic bound on the entropy, which is obtained from local quantum field theories.
arxiv   +1 more source

Casimir effect in a quantum space-time [PDF]

open access: yes, 2014
We apply quantum field theory in quantum space-time techniques to study the Casimir effect for large spherical shells. As background we use the recently constructed exact quantum solution for spherically symmetric vacuum space-time in loop quantum ...
Gambini, Rodolfo   +2 more
core   +3 more sources

Effective dynamics from coherent state path integral of full loop quantum gravity [PDF]

open access: yesPhysical Review D, 2019
A new routine is proposed to relate loop quantum cosmology (LQC) to loop quantum gravity (LQG) from the perspective of effective dynamics. We derive the big-bang singularity resolution and big bounce from the first principle of full canonical LQG.
Muxin Han, Hongguang Liu
semanticscholar   +1 more source

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