Results 111 to 120 of about 39,698 (245)
Journal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.Abstract The geology of a potential Artemis landing site on Mons Malapert is examined using remote sensing techniques and lessons learned from Apollo missions to the lunar surface. Orthomosaics, digital terrain models, illumination models, thermal conditions, crater size‐frequency distribution analyses, geomorphological mapping, spectral and ...
David A. Kring +21 more
wiley +1 more source
Ekpyrotic loop quantum cosmology [PDF]
Journal of Cosmology and Astroparticle Physics, 2013 11 pages, v2: Clarifications and references ...
openaire +2 more sources
Gravitational wave generation in loop quantum cosmology
, 2011 We calculate the full spectrum, as observed today, of the cosmological gravitational waves generated within a model based on loop quantum cosmology. It is assumed that the universe, after the transition to the classical regime, undergoes a period of ...
A. A. Starobinskii +7 more
core +1 more source
Christian Bohr. Discoverer of Homotropic and Heterotopic Allostery
Acta Physiologica, Volume 241, Issue S734, July 2025.ABSTRACT This essay recounts and revisits the scientific contributions of Christian Bohr, highlighting his pivotal role in discovering allostery about 120 years ago. Bohr's meticulous experimentation led to identifying two distinct forms of allostery: homotropic (single‐ligand) and heterotropic (multi‐ligand), the latter widely recognized as the Bohr ...
Niels Bindslev
wiley +1 more source
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
Tachyon matter in loop quantum cosmology [PDF]
Physical Review D, 2006 5 pages, Revtex style. Title changed. Some general comments and references added. No major changes. Accepted for publication in Phys.
openaire +2 more sources
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
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
Report on the session Loop Quantum Gravity: Cosmology and Black Holes of\n the 16th Marcel Grossmann Meeting [PDF]
, 2021 Jorge Pullin, Parampreet Singh
openalex +1 more source