Results 61 to 70 of about 400,960 (288)

Hybrid Deference, Hybrid Chance

open access: yesPhilosophy and Phenomenological Research, EarlyView.
ABSTRACT If you learn about one kind of chance and nothing else, then you should defer to those chances. But what if you learn about more than one kind of chance? In such “hybrid” cases, familiar chance‐credence principles, like the Principal Principle, go silent when they should intuitively speak.
Alexander Meehan
wiley   +1 more source

Loop quantum cosmology and singularities

open access: yesScientific Reports, 2017
Loop quantum gravity is believed to eliminate singularities such as the big bang and big crunch singularity. This belief is based on studies of so-called loop quantum cosmology which concerns symmetry-reduced models of quantum gravity. In this paper, the
Ward Struyve
doaj   +1 more source

On the emergence of a classical isotropic universe from a quantum f(R) Bianchi cosmology in the Jordan frame

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We demonstrate a spontaneous tendency of quantum wave packets to become quasi-classical, providing a classical limit for the Universe dynamics. However, this limit is not maintained in the future (after a critical value of the relational time) and a ...
Mariaveronica De Angelis   +1 more
doaj   +1 more source

The natural science of cosmology

open access: yes, 2012
The network of cosmological tests is tight enough now to show that the relativistic Big Bang cosmology is a good approximation to what happened as the universe expanded and cooled through light element production and evolved to the present. I explain why
Bernardi M   +21 more
core   +1 more source

Coordinate‐ and Spacetime‐Independent Quantum Physics

open access: yesAnnalen der Physik, Volume 538, Issue 1, January 2026.
This article studies in the framework of quantum field theory in curved spacetime, if there exists a single zero‐rank‐tensor solution of a Klein‐Gordon PDE, being valid at once for the depicted spacetimes. The answer is shown to be affirmative, even for a class of such solutions having the standard applications in particle physics. ABSTRACT The concept
Viacheslav A. Emelyanov, Daniel Robertz
wiley   +1 more source

The Apparent Fractal Conjecture [PDF]

open access: yes, 1999
This short communication advances the hypothesis that the observed fractal structure of large-scale distribution of galaxies is due to a geometrical effect, which arises when observational quantities relevant for the characterization of a cosmological ...
Abdalla E.   +5 more
core   +4 more sources

Quantum GraviElectro Dynamics

open access: yesAnnalen der Physik, Volume 538, Issue 1, January 2026.
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley   +1 more source

Zagadnienia kosmologiczne przed Einsteinem

open access: yesZagadnienia Filozoficzne w Nauce, 2005
Einstein's first cosmological work, published in 1917, marked the beginning of relativistic cosmology, but it was well founded on earlier questions concerning the world as a whole.
Michał Heller
doaj  

General relativistic corrections and non-Gaussianity in large scale structure

open access: yes, 2014
General relativistic cosmology cannot be reduced to linear relativistic perturbations superposed on an isotropic and homogeneous (Friedmann-Robertson-Walker) background, even though such a simple scheme has been successfully applied to analyse a large ...
Matarrese, Sabino   +2 more
core   +1 more source

Relativistic Cosmology Number Counts and the Luminosity Function [PDF]

open access: yes, 2003
This paper aims to connect the theory of relativistic cosmology number counts with the astronomical data, practice, and theory behind the galaxy luminosity function (LF). We treat galaxies as the building blocks of the universe but ignore most aspects of
M. B. Ribeiro, W. Stoeger
semanticscholar   +1 more source

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