Results 111 to 120 of about 38,508 (240)
Dynamical coherent states and physical solutions of quantum cosmological bounces
, 2007 A new model is studied which describes the quantum behavior of transitions through an isotropic quantum cosmological bounce in loop quantum cosmology sourced by a free and massless scalar field.
A. Ashtekar +7 more
core +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
Properties of Fluctuating States in Loop Quantum Cosmology
Mathematics, 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
Cosmological perturbations in teleparallel Loop Quantum Cosmology [PDF]
Journal of Cosmology and Astroparticle Physics, 2013 version accepted for publication in ...
openaire +4 more sources
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
Universe, 2018 The understanding of black holes in loop quantum gravity is becoming increasingly accurate. This review focuses on the possible experimental or observational consequences of the underlying spinfoam structure of space-time.
Aurélien Barrau +2 more
doaj +1 more source
Spin-foam model for gravity coupled to massless scalar field
, 2018 A spin-foam model is derived from the canonical model of Loop Quantum Gravity coupled to a massless scalar field. We generalized to the full theory the scheme first proposed in the context of Loop Quantum Cosmology by Ashtekar, Campiglia and Henderson ...
Kisielowski, Marcin, Lewandowski, Jerzy
core +1 more source
A novel link between Wheeler-DeWitt quantization and (effective) loop quantum cosmology
Physics Letters BIt is shown that several prescriptions for the effective continuum limit of the flat Friedmann-Lemaitre-Robertson-Walker loop quantum cosmology can be understood as the exact classical limit of the Wheeler-DeWitt quantization of certain dynamical systems,
Abraham Espinoza-García
doaj +1 more source
Switching Internal Times and a New Perspective on the `Wave Function of the Universe’
Universe, 2019 Despite its importance in general relativity, a quantum notion of general covariance has not yet been established in quantum gravity and cosmology, where, given the a priori absence of coordinates, it is necessary to replace classical frames with ...
Philipp A. Höhn
doaj +1 more source
Some conceptual issues in loop quantum cosmology
, 2016 Loop quantum gravity is a mature theory. To proceed to explicit calculations in cosmology, it is necessary to make assumptions and simplifications based on the symmetries of the cosmological setting. Symmetry reduction is especially critical when dealing
Barrau, Aurélien, Bolliet, Boris
core +3 more sources