Results 111 to 120 of about 48,355 (157)

Quantum Cosmology of Quadratic f(R) Theories with a FRW Metric

open access: yesAdvances in Mathematical Physics, 2017
We study the quantum cosmology of a quadratic fR theory with a FRW metric, via one of its equivalent Horndeski type actions, where the dynamic of the scalar field is induced.
V. Vázquez-Báez, C. Ramírez
doaj   +1 more source

Cosmic Inflation, Quantum Information and the Pioneering Role of John S Bell in Cosmology

open access: yesUniverse, 2019
According to the theory of cosmic inflation, the large scale structures observed in our Universe (galaxies, clusters of galaxies, Cosmic Background Microwave—CMB—anisotropy…) are of quantum mechanical origin. They are nothing but vacuum
Jérôme Martin
doaj   +1 more source

Inflation and axion cosmology

open access: yesPhysics Letters B, 1988
Abstract It is argued that the standard constraint ƒ⪷10 12 GeV in the axion theory and related constraints in the theories of other weakly interacting scalar fields do not apply in many versions of the inflationary universe scenario.
openaire   +1 more source

The Principle of Phase Transition Cosmology: The Current Universe Formed by the Evolution of Two-Component Quantum Superfluid

open access: yesReports in Advances of Physical Sciences
This paper aims to demonstrate that modern cosmology has overlooked the systematic and holistic aspects of the universe’s evolution. It is based on the notion that the primordial universe comprised a two-component quantum superfluid and a synthesis of ...
Xiaodong Yang   +3 more
doaj   +1 more source

An open system approach to gravity

open access: yesJournal of High Energy Physics
Several major open problems in cosmology — including the nature of inflation, dark matter, and dark energy — share a common structure: they involve spacetime-filling media with unknown microphysics, and can be probed so far only through their ...
Santiago Agüí Salcedo   +3 more
doaj   +1 more source

Dilaton-Driven Inflation in String Cosmology [PDF]

open access: yes, 1995
11 pages, latex, 1 figure icluded as an epsf ...
openaire   +2 more sources

The Spectre of Underdetermination in Modern Cosmology

open access: yesPhilosophy of Physics
The scientific status of physical cosmology has been the subject of philosophical debate ever since detailed mathematical models of the universe emerged from Einstein’s general theory of relativity.
Pedro G. Ferreira   +2 more
doaj   +1 more source

Soft inflation [PDF]

open access: yes
The cosmology resulting from two coupled scalar fields was studied, one which is either a new inflation or chaotic type inflation, and the other which has an exponentially decaying potential.
Berkin, Andrew L.   +2 more
core   +1 more source

Eternal Inflation and the Hermeneutics of the Infinite: Interpreting Cosmology at the Edge of Meaning

open access: yesФилософия и космология
The theory of eternal inflation — according to which our observable universe is just one bubble within an endlessly self-replicating multiverse — presents not only a physical but also a hermeneutic challenge.
Heitor Matallo Jr1
doaj   +1 more source

Home - About - Disclaimer - Privacy