Results 111 to 120 of about 75,052 (218)
A Discrete Time Presentation of Quantum Dynamics [PDF]
, 2002 Inspired by the discrete evolution implied by the recent work on loop quantum cosmology, we obtain a discrete time description of usual quantum mechanics viewing it as a constrained system. This description, obtained without any approximation or explicit
Ashtekar A +15 more
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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
doaj +1 more source
Preinflationary dynamics of an α− attractor in loop quantum cosmology [PDF]
Physical Review D, 2018 We systematically study the preinflationary dynamics of the spatially flat Friedmann-Lemaitre-Robertson-Walker universe filled with a single scalar field that has the generalized $\ensuremath{\alpha}$-attractor potentials, in the framework of loop ...
M. Shahalam +3 more
semanticscholar +1 more source
Enemies: uneasy accompaniments in late life Ennemis : accompagnements de fin de vie difficiles
Journal of the Royal Anthropological Institute, Volume 31, Issue S1, Page 128-144, April 2025.Against a phenomenological orientation to ageing as path or course, a contrastive frame is offered around a figure termed the enemy. Four distinctive ethnographic fragments are utilized: (1) a Polish‐Jewish migrant to Canada in her late eighties who listens continually to the radio and worries over the malign forces in the world that the radio ...
Lawrence Cohen
wiley +1 more source
Inhomogenous loop quantum cosmology with matter
Journal of Physics: Conference Series, 2012 4 pages, Contribution to the proceedings of the Loops 11-Madrid ...
Martin-de Blas, D. +2 more
openaire +5 more sources
Fermions in hybrid loop quantum cosmology [PDF]
Physical Review D, 2017 29 pages.
Elizaga Navascués, Beatriz +2 more
openaire +3 more sources
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
Dreaming Ubuntu: Jungian Studies, Forgiveness, and Jung’s Recalcitrant Fourth
Journal of Analytical Psychology, Volume 70, Issue 2, Page 235-256, April 2025.Abstract Jung’s recalcitrant fourth comes in from a place of opposition, demanding that what has been neglected be considered. It is in the spirit of the fourth that the author examines the use of Ubuntu in Jungian literature, cautioning against a decontextualized appropriation of the notion that overlooks its diverse interpretations and usages ...
Barbara Cerminara
wiley +1 more source
Observational Constraints on Loop Quantum Cosmology
Physical Review Letters, 2011 In the inflationary scenario of loop quantum cosmology in the presence of inverse-volume corrections, we give analytic formulas for the power spectra of scalar and tensor perturbations convenient to compare with observations. Since inverse-volume corrections can provide strong contributions to the running spectral indices, inclusion of terms higher ...
Bojowald, M. +2 more
openaire +5 more sources
Alternative quantization of the Hamiltonian in loop quantum cosmology II: Including the Lorentz term [PDF]
, 2009 Since there are quantization ambiguities in constructing the Hamiltonian constraint operator in isotropic loop quantum cosmology, it is crucial to check whether the key features of loop quantum cosmology are robust against the ambiguities. In this paper,
Ashtekar +24 more
core +4 more sources