Results 31 to 40 of about 2,019 (176)

Nonlinear quantum cosmology [PDF]

open access: yesGeneral Relativity and Gravitation, 2009
Final Journal version: Further clarification in Introduction and Conclusion. references added.
Nguyen, L.-H., Parwani, R.R.
openaire   +3 more sources

Thermodynamics in Loop Quantum Cosmology

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   +1 more source

Correspondence between dark energy quantum cosmology and Maxwell equations

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
A Friedmann–Robertson–Walker cosmology with dark energy can be modelled using a quintessence field. That system is equivalent to a relativistic particle moving on a two-dimensional conformal spacetime.
Felipe A. Asenjo, Sergio A. Hojman
doaj   +1 more source

Hořava-Lifshitz Scalar Field Cosmology: Classical and Quantum Viewpoints

open access: yesAdvances in High Energy Physics, 2021
In this paper, we study a projectable Hořava-Lifshitz cosmology without the detailed balance condition minimally coupled to a nonlinear self-coupling scalar field.
Fatimah Tavakoli   +2 more
doaj   +1 more source

Quantum cosmological models [PDF]

open access: yesClassical and Quantum Gravity, 2005
revised: now includes time asymmetry, black hole final state etc, 71 ...
openaire   +3 more sources

Quantum cosmology and tachyons [PDF]

open access: yesFortschritte der Physik, 2008
AbstractWe discuss the relevance of the classical and quantum rolling tachyons inflation in the frame of the standard, p‐adic and adelic minisuperspace quantum cosmology. The field theory of tachyon matter proposed by Sen in a zero‐dimensional version suggested by Kar leads to a model of a particle moving in a constant external field with quadratic ...
Dimitrijevic, D. D.   +2 more
openaire   +2 more sources

Quantum Cosmology in Krylov Space: Complexity and Entropy

open access: yesEntropy
We study the quantum dynamics in Krylov space of a spatially flat, homogeneous, and isotropic universe sourced with a massless scalar field within Wheeler–DeWitt (WDW) quantum cosmology and loop quantum cosmology (LQC) frameworks.
Meysam Motaharfar   +2 more
doaj   +1 more source

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   +1 more source

Supersymmetry and quantum cosmology [PDF]

open access: yesPhysics Letters B, 2001
19 ...
Assaoui, F., Lhallabi, T.
openaire   +2 more sources

Cosmological quantum billiards [PDF]

open access: yes, 2012
The mini-superspace quantization of D=11 supergravity is equivalent to the quantization of a E10/K(E10) coset space sigma model, when the latter is restricted to the E10 Cartan subalgebra. As a consequence, the wavefunctions solving the relevant mini-superspace Wheeler-DeWitt equation involve automorphic (Maass wave) forms under the modular group W ...
Kleinschmidt, Axel, Nicolai, Hermann
openaire   +4 more sources

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