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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   +2 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   +2 more sources

The dynamics of cosmological scenarios inspired by quantum gravity [PDF]

open access: yes, 2006
PhDIn this thesis we study the dynamics of cosmological scenarios inspired by quantum gravity. Part I investigates novel features of the semi-classical regime of homogeneous and isotropic loop quantum cosmology.
Mulryne, David James
core   +4 more sources

Tachyon field in loop cosmology

open access: yesPhysics Letters B, 2020
The evolutionary pictures of tachyon field in modified loop cosmology have been investigated. We present the dynamical behavior of the tachyon field associated with an exponential potential and find that the pre-inflation dynamics are very similar in ...
Kui Xiao
doaj   +1 more source

(b,v)-type variables for black to white hole transitions in effective loop quantum gravity

open access: yesPhysics Letters B, 2021
Quantum gravity effects in effective models of loop quantum gravity, such as loop quantum cosmology, are encoded in the choice of so-called polymerisation schemes.
Norbert Bodendorfer   +2 more
doaj   +1 more source

Polymer Dynamics of Isotropic Universe in Ashtekar and in Volume Variables

open access: yesUniverse, 2022
We analyze the semiclassical and quantum polymer dynamics of the isotropic Universe in terms of both the standard Ashtekar-Barbero-Immirzi connection and its conjugate momentum and also of the new generalized coordinate conjugate to the Universe volume ...
Eleonora Giovannetti   +3 more
doaj   +1 more source

Does the Loop Quantum μo Scheme Permit Black Hole Formation?

open access: yesUniverse, 2021
We explore the way different loop quantization prescriptions affect the formation of trapped surfaces in the gravitational collapse of a homogeneous dust cloud, with particular emphasis on the so-called μo scheme in which loop quantum cosmology was ...
Bao-Fei Li, Parampreet Singh
doaj   +1 more source

Phenomenology of loop quantum cosmology

open access: yes, 2010
After introducing the basic ingredients of Loop Quantum Cosmology, I will briefly discuss some of its phenomenological aspects. Those can give some useful insight about the full Loop Quantum Gravity theory and provide an answer to some long-standing ...
Sakellariadou, Mairi; id_orcid   +1 more
core   +6 more sources

On the holographic basis of loop quantum cosmology

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
In this work, we obtain the loop quantum cosmology dynamical equations, plus a positive cosmological constant, from the Bekenstein–Hawking entropy-area relation given by Loop Quantum Black Holes, by the use of the Jacobson formalism (Phys Rev Lett 75 ...
C. A. S. Silva
doaj   +1 more source

Mass of Cosmological Perturbations in the Hybrid and Dressed Metric Formalisms of Loop Quantum Cosmology for the Starobinsky and Exponential Potentials

open access: yesUniverse, 2022
The hybrid and the dressed metric formalisms for the study of primordial perturbations in Loop Quantum Cosmology lead to dynamical equations for the modes of these perturbations that are of a generalized harmonic-oscillator type, with a mass that depends
Simon Iteanu, Guillermo A. Mena Marugán
doaj   +1 more source

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