Results 121 to 130 of about 77,468 (282)
Loop Quantum Cosmology: A cosmological theory with a view
Journal of Physics: Conference Series, 2011 Loop Quantum Gravity is a background independent, nonperturbative approach to the quantization of General Relativity. Its application to models of interest in cosmology and astrophysics, known as Loop Quantum Cosmology, has led to new and exciting views of the gravitational phenomena that took place in the early universe, or that occur in spacetime ...
openaire +3 more sources
Quantum-reduced loop gravity: Cosmology [PDF]
Physical Review D, 2013 26 pages, typo corrected in eq.(114)
ALESCI, Emanuele, Cianfrani F.
openaire +2 more sources
Magnetic Mineralogy in Lunar Mare Basalts and Implications for Paleointensity Retrieval
Journal 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
Revisiting pre-inflationary Universe of family of α -attractor in loop quantum cosmology [PDF]
Classical and quantum gravity, 2019 In this work, we revisit the dynamics of pre-inflationary Universe with a family of α-attractor potentials, in the framework of loop quantum cosmology, in which the big bang singularity is generically resolved purely with quantum geometric effects, and ...
M. Shahalam +3 more
semanticscholar +1 more source
Qualitative study in loop quantum cosmology [PDF]
Classical and Quantum Gravity, 2017 This work contains a detailed qualitative analysis, in General Relativity and in Loop Quantum Cosmology, of the dynamics in the associated phase space of a scalar field minimally coupled with gravity, whose potential mimics the dynamics of a perfect fluid with a linear Equation of State (EoS).
Aresté Saló, Llibert +2 more
openaire +4 more sources
New Hamiltonian constraint operator for loop quantum gravity
Physics Letters B, 2015 A new symmetric Hamiltonian constraint operator is proposed for loop quantum gravity, which is well defined in the Hilbert space of diffeomorphism invariant states up to non-planar vertices with valence higher than three. It inherits the advantage of the
Jinsong Yang, Yongge Ma
doaj +1 more source
Bounce Loop Quantum Cosmology Corrected Gauss-Bonnet Gravity
, 2015 We develop a Gauss-Bonnet extension of Loop Quantum Cosmology, by introducing holonomy corrections in modified $F(\mathcal{G})$ theories of gravity.
Haro, J. +4 more
core +2 more sources
Quantum Nature of the Big Bang: Improved dynamics [PDF]
, 2006 An improved Hamiltonian constraint operator is introduced in loop quantum cosmology. Quantum dynamics of the spatially flat, isotropic model with a massless scalar field is then studied in detail using analytical and numerical methods.
A. Ashtekar +11 more
core +3 more sources
Loop quantum cosmology from an alternative Hamiltonian [PDF]
Physical Review D, 2019 In this paper, a new Hamiltonian constraint operator for loop quantum cosmology is constructed by using the Chern-Simons action. The quantum dynamics of the $k=0$ cosmological model with respect to a massless scalar field as an emergent time is ...
Jinsong Yang, Cong Zhang, Yongge Ma
semanticscholar +1 more source
Journal 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