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Loop Quantum Cosmology [PDF]

open access: yesProceedings of 3rd Quantum Gravity and Quantum Geometry School — PoS(QGQGS 2011), 2013
This Chapter provides an up to date, pedagogical review of some of the most relevant advances in loop quantum cosmology. We review the quantization of homogeneous cosmological models, their singularity resolution and the formulation of effective ...
Agullo, Ivan, Corichi, Alejandro
core   +7 more sources

Isotropic Loop Quantum Cosmology [PDF]

open access: yesClassical and Quantum Gravity, 2002
Isotropic models in loop quantum cosmology allow explicit calculations, thanks largely to a completely known volume spectrum, which is exploited in order to write down the evolution equation in a discrete internal time.
  +25 more
core   +5 more sources

Thermodynamics in Loop Quantum Cosmology [PDF]

open access: yesAdvances in High Energy Physics, 2009
Loop quantum cosmology (LQC) is very powerful to deal with the behavior of early universe. Moreover, the effective loop quantum cosmology gives a successful description of the universe in the semiclassical region.
Li-Fang Li, Jian-Yang Zhu
doaj   +4 more sources

A Brief Introduction to Loop Quantum Cosmology [PDF]

open access: yesAIP Conference Proceedings, 2009
In 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 ...
Marugan, Guillermo A. Mena
core   +5 more sources

Unimodular Loop Quantum Cosmology [PDF]

open access: yesPhysical Review D, 2010
Unimodular gravity is based on a modification of the usual Einstein-Hilbert action that allows one to recover general relativity with a dynamical cosmological constant.
A. Ashtekar   +12 more
core   +5 more sources

Homogeneous Loop Quantum Cosmology [PDF]

open access: yesClassical and Quantum Gravity, 2003
Loop quantum cosmological methods are extended to homogeneous models in diagonalized form. It is shown that the diagonalization leads to a simplification of the volume operator such that its spectrum can be determined explicitly.
Ashtekar A   +19 more
core   +4 more sources

Non-standard loop quantum cosmology [PDF]

open access: yesAnnalen der Physik, 2010
We present results concerning the nature of the cosmological big bounce(BB) transition within the loop geometry underlying loop quantum cosmology (LQC). Our canonical quantization method is an alternative to the standard LQC.
Ashtekar   +4 more
core   +2 more sources

The Semiclassical Limit of Loop Quantum Cosmology [PDF]

open access: yesClassical and Quantum Gravity, 2001
The continuum and semiclassical limits of isotropic, spatially flat loop quantum cosmology are discussed, with an emphasis on the role played by the Barbero-Immirzi parameter \gamma in controlling space-time discreteness.
Ashtekar A   +20 more
core   +6 more sources

Loop Quantum Cosmology: A Status Report [PDF]

open access: yesClassical and Quantum Gravity, 2011
The goal of this article is to provide an overview of the current state of the art in loop quantum cosmology for three sets of audiences: young researchers interested in entering this area; the quantum gravity community in general; and, cosmologists who ...
Abhay Ashtekar   +134 more
core   +5 more sources

The Quantum Configuration Space of Loop Quantum Cosmology [PDF]

open access: yesClassical and Quantum Gravity, 2007
The article gives an account of several aspects of the space known as the Bohr compactification of the line, featuring as the quantum configuration space in loop quantum cosmology, as well as of the corresponding configuration space realization of the so-
Ashtekar A   +16 more
core   +2 more sources

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