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A brief introduction to loop quantum cosmology

AutorMena Marugán, Guillermo A.
Palabras clave[PACS] Quantum gravity
[PACS] Fundamental problems and general formalism in general relativity
[PACS] Quantum fields in curved spacetime
[PACS] Integral and integrodifferential equations
Fecha de publicación6-may-2009
EditorAmerican Institute of Physics
CitaciónAIP Conference Proceedings, 1130 (1): 89-100
ResumenIn recent years, Loop Quantum Gravity has emerged as a solid candidate for a nonperturbative quantum theory of General Relativity. It is a background independent theory based on a description of the gravitational field in terms of holonomies and fluxes. In order to discuss its physical implications, a lot of attention has been paid to the application of the quantization techniques of Loop Quantum Gravity to symmetry reduced models with cosmological solutions, a line of research that has been called Loop Quantum Cosmology. We summarize its fundamentals and the main differences with respect to the more conventional quantization approaches employed in cosmology until now. In addition, we comment on the most important results that have been obtained in Loop Quantum Cosmology by analyzing simple homogenous and isotropic models. These results include the resolution of the classical big-bang singularity, which is replaced by a quantum bounce.
Descripción15 pags. ; AIP Conference Proceedings, Geometry and Physics: XVII International Fall Workshop on Geometry and Physics
Versión del editorhttp://dx.doi.org/10.1063/1.3146242
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