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Loop Quantum Cosmology [PDF]

open access: yesLiving Reviews in Relativity, 2008
Quantum gravity is expected to be necessary in order to understand situations in which classical general relativity breaks down. In particular in cosmology one has to deal with initial singularities, i.e., the fact that the backward evolution of a ...
Bojowald Martin
doaj   +14 more sources

Loop quantum cosmology and singularities [PDF]

open access: yesScientific Reports, 2017
Loop quantum gravity is believed to eliminate singularities such as the big bang and big crunch singularity. This belief is based on studies of so-called loop quantum cosmology which concerns symmetry-reduced models of quantum gravity. In this paper, the
Ward Struyve
doaj   +7 more sources

Testing loop quantum cosmology [PDF]

open access: greenComptes 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   +6 more sources

Loop Quantum Cosmology [PDF]

open access: yesLiving Reviews in Relativity, 2005
Quantum gravity is expected to be necessary in order to understand situations where classical general relativity breaks down. In particular in cosmology one has to deal with initial singularities, i.e., the fact that the backward evolution of a classical
Bojowald Martin
doaj   +2 more sources

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

Noncommutativity in Effective Loop Quantum Cosmology

open access: yesAdvances in High Energy Physics, 2019
We construct a noncommutative extension of the Loop Quantum Cosmology effective scheme for the flat FLRW model with a free scalar field via a theta deformation.
Abraham Espinoza-García   +3 more
doaj   +2 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

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   +3 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

Unveiling the evolution of rotating black holes in loop quantum cosmology [PDF]

open access: yesScientific Reports
In this work, we aim to discuss about the evolution of rotating black holes (RBHs) within the context of loop quantum cosmology. Here, the main part of our research work focuses on the impacts of angular momentum based rotating parameter and accretion ...
Suryakanta Swain   +2 more
doaj   +2 more sources

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