Results 61 to 70 of about 18,744 (207)

Fermion coupling to loop quantum gravity: Canonical formulation [PDF]

Physical Review D, 2021
In the model of a fermion field coupled to loop quantum gravity, we consider the Gauss and the Hamiltonian constraints. According to the explicit solutions to the Gauss constraint, the fermion spins and the gravitational spin networks intertwine with ...
J. Lewandowski, Cong Zhang
semanticscholar   +1 more source

Matter coupled to 3d quantum gravity: one-loop unitarity [PDF]

Classical and quantum gravity
We expect quantum field theories for matter to acquire intricate corrections due to their coupling to quantum fluctuations of the gravitational field. This can be precisely worked out in 3d quantum gravity: after integrating out quantum gravity, matter ...
E. Livine, Valentine Maris
semanticscholar   +1 more source

Testing Loop Quantum Gravity from Observational Consequences of Nonsingular Rotating Black Holes. [PDF]

Physical Review Letters, 2020
The lack of rotating black hole models, which are typically found in nature, in loop quantum gravity (LQG) substantially hinders the progress of testing LQG from observations.
Suddhasattwa Brahma, Che-Yu Chen, Dong-han Yeom   +2 more
semanticscholar   +1 more source

Loop quantum gravity boundary dynamics and SL(2,C) gauge theory [PDF]

Classical and quantum gravity, 2021
In the context of the quest for a holographic formulation of quantum gravity, we investigate the basic boundary theory structure for loop quantum gravity.
E. Livine
semanticscholar   +1 more source

Black Hole Evaporation: A Perspective from Loop Quantum Gravity [PDF]

Universe, 2020
A personal perspective on the black hole evaporation process is presented using, as guidelines, inputs from: (i) loop quantum gravity, (ii) simplified models where concrete results have been obtained, and, (iii) semi-classical quantum general relativity.
A. Ashtekar
semanticscholar   +1 more source

Noncovariance of “covariant polymerization” in models of loop quantum gravity [PDF]

, 2021
A new modification of spherically symmetric models inspired by loop quantum gravity has recently been introduced by Benitez, Gambini and Pullin, who claimed that it preserves general covariance.
M. Bojowald
semanticscholar   +1 more source

Black-Hole Models in Loop Quantum Gravity [PDF]

Universe, 2020
Dynamical black-hole scenarios have been developed in loop quantum gravity in various ways, combining results from mini and midisuperspace models. In the past, the underlying geometry of space-time has often been expressed in terms of line elements with ...
M. Bojowald
semanticscholar   +1 more source

Loop space representation of quantum fermions and gravity

Nuclear Physics B, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Morales-Técotl, Hugo A., Rovelli, Carlo
openaire   +2 more sources

Improved effective dynamics of loop-quantum-gravity black hole and Nariai limit [PDF]

Classical and quantum gravity, 2020
We propose a new model of the spherical symmetric quantum black hole in the reduced phase space formulation. We deparametrize gravity by coupling to the Gaussian dust which provides the material coordinates.
Muxin Han, Hongguang Liu
semanticscholar   +1 more source

Phase space and black-hole entropy of higher genus horizons in loop quantum gravity [PDF]

Classical and Quantum Gravity, 2008
22 pages, 9 figures. References updated. Minor changes to match version to appear in Class.
Kloster, S., Brannlund, J., DeBenedictis, A.   +2 more
openaire   +2 more sources