Results 71 to 80 of about 75,052 (218)
Qualitative study in loop quantum cosmology [PDF]
Classical and Quantum Gravity, 2017 This work contains a detailed qualitative analysis, in General Relativity and in Loop Quantum Cosmology, of the dynamics in the associated phase space of a scalar field minimally coupled with gravity, whose potential mimics the dynamics of a perfect fluid with a linear Equation of State (EoS).
Aresté Saló, Llibert +2 more
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Is a loopy and noncommutative early Universe viable?
Physics Letters B, 2023 We conduct a (pre-)inflationary dynamics study of the chaotic quadratic potential within the framework of a simple noncommutative extension of effective loop quantum cosmology put forward recently.
Luis Rey Díaz-Barrón +3 more
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Primordial power spectrum from the Dapor–Liegener model of loop quantum cosmology [PDF]
General Relativity and Gravitation, 2018 We compute the predictions for the power spectrum of scalar perturbations from a recent new proposal for the effective Hamiltonian of loop quantum cosmology.
I. Agulló
semanticscholar +1 more source
Symmetry Reduction of Loop Quantum Gravity
, 2011 The relation between standard Loop Quantum Cosmology and full Loop Quantum Gravity fails already at the first nontrivial step: The configuration space of Loop Quantum Cosmology can not be embedded into the configuration space of full Loop Quantum Gravity
Brunnemann, Johannes, Koslowski, Tim A.
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Loop Quantum Cosmological Perturbations
Journal of Physics: Conference Series, 2014 This work was supported by the Project No.
Fernández Méndez, Mikel +2 more
openaire +3 more sources
Non-Gaussianity in loop quantum cosmology [PDF]
Physical Review D, 2018 Minor updates: current version matches the accepted PRD ...
V. Sreenath +4 more
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Tachyon field in loop cosmology
Physics 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
(b,v)-type variables for black to white hole transitions in effective loop quantum gravity
Physics 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
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Revisiting pre-inflationary Universe of family of α -attractor in loop quantum cosmology [PDF]
Classical and quantum gravity, 2019 In this work, we revisit the dynamics of pre-inflationary Universe with a family of α-attractor potentials, in the framework of loop quantum cosmology, in which the big bang singularity is generically resolved purely with quantum geometric effects, and ...
M. Shahalam +3 more
semanticscholar +1 more source
Dynamical behavior of interacting dark energy in loop quantum cosmology
, 2010 The dynamical behaviors of interacting dark energy in loop quantum cosmology are discussed in this paper. Based on defining three dimensionless variables, we simplify the equations of the fixed points.
Chen X.-M. +5 more
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