Results 81 to 90 of about 451 (178)

Numerical Techniques in Loop Quantum Cosmology

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
In this article, we review the use of numerical techniques to obtain solutions for the quantum Hamiltonian constraint in loop quantum cosmology (LQC).
David Brizuela   +2 more
doaj   +1 more source

Unification of Conformal and Fuzzy Gravities With Internal Interactions Resulting in SO(10) and a Possible Probe Through Stochastic Gravitational Wave Background

open access: yesFortschritte der Physik, Volume 73, Issue 9-10, October 2025.
Abstract The unification of conformal and fuzzy gravities with internal interactions is based on the facts that i) the tangent group of a curved manifold and the manifold itself do not necessarily have the same dimensions and ii) both gravitational theories considered here have been formulated in a gauge theoretic way.
Gregory Patellis   +3 more
wiley   +1 more source

A Time‐Dependent Model of the Vibrational Distribution of Nitrogen Molecules: New Rate Data Sets and Self‐Consistent Coupling With Auroral and Ionospheric Electrons

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 9, September 2025.
Abstract Vibrationally excited nitrogen molecules (N2) play an important role in the chemistry and dynamics of Earth's atmosphere. Electron impact, whether it originates from auroral precipitation or ionospheric thermal electrons, is among the major causes of the vibrational excitation of N2.
Jun Liang   +2 more
wiley   +1 more source

Quantum cosmology from quantum gravity condensates: cosmological variables and lattice-refined dynamics

open access: yesNew Journal of Physics, 2014
In the context of group field theory condensate cosmology, we clarify the extraction of cosmological variables from the microscopic quantum gravity degrees of freedom.
Steffen Gielen, Daniele Oriti
doaj   +1 more source

Gravity's rainbow: A bridge between LQC and DSR

open access: yesPhysics Letters B, 2017
The doubly special relativity (DSR) theories are constructed in order to take into account an observer-independent length scale in special relativity framework. Gravity's rainbow is a simple generalization of DSR theories to incorporate gravity.
M.A. Gorji, K. Nozari, B. Vakili
doaj   +1 more source

Magnetic Mineralogy in Lunar Mare Basalts and Implications for Paleointensity Retrieval

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract Lunar paleomagnetic studies have identified multidomain metallic Fe–Ni alloys as the dominant magnetic contributors in mare basalts. Here, we explore the low‐temperature magnetic behavior of standard samples for a suite of opaque minerals that occur within mare basalts (single‐domain and multidomain Fe, wüstite, ulvöspinel, iron chromite ...
Ji‐In Jung   +6 more
wiley   +1 more source

Loop Quantum Cosmological Perturbations

open access: yesJournal of Physics: Conference Series, 2014
4 pags. 2nd International Conference on Mathematical Modeling in Physical Sciences 2013; Open Access funded by Creative Commons Atribution Licence 3.0 In the context of loop quantum cosmology, we provide a complete quantization of an inhomogeneous inflationary model consisting of a perturbed Friedmann-Lemaˆıtre-RobertsonWalker universe filled with a ...
Fernández Méndez, Mikel   +2 more
openaire   +2 more sources

Properties of Fluctuating States in Loop Quantum Cosmology

open access: yesMathematics, 2019
In loop quantum cosmology, the values of volume fluctuations and correlations determine whether the dynamics of an evolving state exhibits a bounce. Of particular interest are states that are supported only on either the positive or the negative part of ...
Martin Bojowald
doaj   +1 more source

Immanent Idealism

open access: yesJournal for the Theory of Social Behaviour, Volume 55, Issue 3, September 2025.
ABSTRACT This article introduces immanent idealism as an alternative path in social ontology and theory. It argues for a distinction between three basic ontological dimensions, the ideational, the institutional and the structural. This approach highlights the cognitional priority of worldviews as the core element of the ideational dimension, and it ...
Christoforos Bouzanis
wiley   +1 more source

Higher dimensional loop quantum cosmology

open access: yesThe European Physical Journal C, 2016
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. The isotropic and homogenous cosmological model in n+1 dimensions is quantized by the loop quantization method.
openaire   +2 more sources

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