Results 111 to 120 of about 77,468 (282)
Quantum Gravitational Non-Singular Tunneling Wavefunction Proposal
Physical Sciences Forum, 2023 It has recently been shown that the tunneling wavefunction proposal is consistent with loop quantum geometry corrections, including both holonomy and inverse scale factor corrections, in the gravitational part of a spatially closed isotropic model with a
Meysam Motaharfar, Parampreet Singh
doaj +1 more source
Gravity Modeling of Lunar Lava Tubes: Insights From a Terrestrial Analog
Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.Abstract The exploration of lunar lava tubes can address challenges of human habitation on the Moon by identifying natural shelters against radiation, temperature extremes, and micrometeoroid impacts. This study shows the feasibility of detecting lunar lava tubes with gravimetry using Ape Cave in Washington State, USA, as a terrestrial analog. Ape Cave'
Sarai Montañez Muñoz +4 more
wiley +1 more source
Probability of inflation in loop quantum cosmology [PDF]
Physical Review D, 2019 We discuss how initial conditions for cosmological evolution can be defined in Loop Quantum Cosmology with massive scalar field and how the presence of the bounce influences the probability of inflation in this theory, compared with General Relativity.
Bedić, Suzana, Vereshchagin, Gregory
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Hysteresis and beating phenomena in loop quantum cosmology [PDF]
Physical Review D, 2019 Differences in pressure during expansion and contraction stages in cosmic evolution can result in a hysteresis-like phenomena in non-singular cyclic models sourced with scalar fields.
J. Dupuy, Parampreet Singh
semanticscholar +1 more source
Fortschritte 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
Probability of inflation in loop quantum cosmology [PDF]
General Relativity and Gravitation, 2011 34 pages, 3 ...
Ashtekar, Abhay, Sloan, David
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Restrictions on curved cosmologies in modified gravity from metric considerations
Physics Letters B, 2015 This study uses very simple symmetry and consistency considerations to put constraints on possible Friedmann equations for modified gravity models in curved spaces. As an example, it is applied to loop quantum cosmology.
Linda Linsefors, Aurelien Barrau
doaj +1 more source
Universe, 2023 In recent decades, there has been growing interest in the quantization of black holes using techniques developed in loop quantum cosmology. Due to the quantum geometry effect, the resulting quantum-corrected black hole provides non-singular models.
Xiangdong Zhang
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On the Physical Hilbert Space of Loop Quantum Cosmology
, 2004 In this paper we present a model of Riemannian loop quantum cosmology with a self-adjoint quantum scalar constraint. The physical Hilbert space is constructed using refined algebraic quantization.
A. Ashtekar +9 more
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Journal 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