Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Borja, Enrique F."'
Loop Quantum Gravity is now a well established approach to quantum gravity. One of the main challenges still faced by the theory is constructing a consistent dynamics which would lead back to the standard dynamics of the gravitational field at large
Externí odkaz:
http://arxiv.org/abs/1201.5470
Publikováno v:
Class.Quant.Grav. 29 (2012) 145012
We extend previous results in spherically symmetric gravitational systems coupled with a massless scalar field within the loop quantum gravity framework. As starting point, we take the Schwarzschild spacetime. The results presented here rely on the u
Externí odkaz:
http://arxiv.org/abs/1201.4229
The implementation of the dynamics in loop quantum gravity (LQG) is still an open problem. Here, we discuss a tentative dynamics for the simplest class of graphs in LQG: Two vertices linked with an arbitrary number of edges. We find an interesting gl
Externí odkaz:
http://arxiv.org/abs/1110.6017
The U(N) framework and the spinor representation for loop quantum gravity are two new points of view that can help us deal with the most fundamental problems of the theory. Here, we review the detailed construction of the U(N) framework explaining ho
Externí odkaz:
http://arxiv.org/abs/1110.4578
Publikováno v:
SIGMA 8 (2012), 015, 44 pages
Loop Quantum Gravity provides a natural truncation of the infinite degrees of freedom of gravity, obtained by studying the theory on a given finite graph. We review this procedure and we present the construction of the canonical theory on a simple gr
Externí odkaz:
http://arxiv.org/abs/1110.3020
Autor:
Agullo, Ivan, G., J. Fernando Barbero, Borja, Enrique F., Diaz-Polo, Jacobo, Villaseñor, Eduardo J. S.
Publikováno v:
Phys.Rev.D82:084029,2010
We give a complete and detailed description of the computation of black hole entropy in loop quantum gravity by employing the most recently introduced number-theoretic and combinatorial methods. The use of these techniques allows us to perform a deta
Externí odkaz:
http://arxiv.org/abs/1101.3660
The implementation of the dynamics in Loop Quantum Gravity (LQG) is still an open problem. Here, we discuss a tentative dynamics for the simplest class of graphs in LQG: Two vertices linked with an arbitrary number of edges. We use the recently intro
Externí odkaz:
http://arxiv.org/abs/1012.3832
Publikováno v:
Class.Quant.Grav.28:055005,2011
We explore the classical setting for the U(N) framework for SU(2) intertwiners for loop quantum gravity (LQG) and describe the corresponding phase space in terms of spinors with appropriate constraints. We show how its quantization leads back to the
Externí odkaz:
http://arxiv.org/abs/1010.5451
Publikováno v:
Class.Quant.Grav.27:235010,2010
We use the recently introduced U(N) framework for loop quantum gravity to study the dynamics of spin network states on the simplest class of graphs: two vertices linked with an arbitrary number N of edges. Such graphs represent two regions, in and ou
Externí odkaz:
http://arxiv.org/abs/1006.2451
Autor:
Agullo, Ivan, G., J. Fernando Barbero, Borja, Enrique F., Diaz-Polo, Jacobo, Villaseñor, Eduardo J. S.
Publikováno v:
Phys.Rev.D80:084006,2009
We use the combinatorial and number-theoretical methods developed in previous work by the authors to study black hole entropy in the new proposal put forward by Engle, Noui and Perez. Specifically we give the generating functions relevant for the com
Externí odkaz:
http://arxiv.org/abs/0906.4529