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Hybrid Loop Quantum Cosmology: An Overview [PDF]

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Loop Quantum Gravity is a nonperturbative and background independent program for the quantization of General Relativity. Its underlying formalism has been applied successfully to the study of cosmological spacetimes, both to test the principles and ...
Beatriz Elizaga Navascués   +1 more
doaj   +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   +3 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   +7 more sources

Testing loop quantum cosmology [PDF]

open access: yesComptes Rendus. Physique, 2017
Loop quantum cosmology predicts that quantum gravity effects resolve the big-bang singularity and replace it by a cosmic bounce. Furthermore, loop quantum cosmology can also modify the form of primordial cosmological perturbations, for example by ...
Wilson-Ewing, Edward
core   +5 more sources

Loop Quantum Cosmology [PDF]

open access: yes, 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

Introduction to Loop Quantum Cosmology [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
This is an introduction to loop quantum cosmology (LQC) reviewing mini- and midisuperspace models as well as homogeneous and inhomogeneous effective dynamics.
Kinjal Banerjee   +2 more
doaj   +7 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

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   +7 more sources

Higher dimensional Loop Quantum Cosmology [PDF]

open access: yesThe European Physical Journal C, 2015
Loop quantum cosmology(LQC) is the symmetric model of loop quantum gravity. In this paper, we generalize the structure of loop quantum cosmology to the theories with arbitrary spacetime dimensions.
Zhang, Xiangdong
core   +4 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   +7 more sources

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