Results 1 to 10 of about 708 (181)

Inflation and Fractional Quantum Cosmology

open access: yesFractal and Fractional, 2022
The Wheeler–DeWitt equation for a flat and compact Friedmann–Lemaître–Robertson–Walker cosmology at the pre-inflation epoch is studied in the contexts of the standard and fractional quantum cosmology.
Seyed Meraj Mousavi Rasouli   +3 more
doaj   +5 more sources

Relativistic Cosmology with an Introduction to Inflation

open access: yesUniverse, 2021
In this review article, the study of the development of relativistic cosmology and the introduction of inflation in it as an exponentially expanding early phase of the universe is carried out.
Muhammad Zahid Mughal   +2 more
doaj   +3 more sources

Constraining barrow entropy-based cosmology with power-law inflation [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We study the inflationary era of the Universe in a modified cosmological scenario based on the gravity-thermodynamics conjecture with Barrow entropy instead of the usual Bekenstein–Hawking one.
G. G. Luciano
doaj   +2 more sources

Inflation in loop quantum cosmology [PDF]

open access: yesPhysical Review D, 2019
18 pages, 6 tables.
Jorma Louko   +2 more
exaly   +3 more sources

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   +3 more sources

Early and late universe holographic cosmology from a new generalized entropy

open access: yesPhysics Letters B, 2022
We propose a new four-parameter entropy function that generalizes the Tsallis, Rényi, Barrow, Sharma-Mittal, Kaniadakis and Loop Quantum Gravity entropies for suitable limits of the parameters.
Shin'ichi Nojiri   +2 more
doaj   +1 more source

The Warm Inflation Story

open access: yesUniverse, 2023
Warm inflation has normalized two ideas in cosmology, that in the early universe the initial primordial density perturbations generally could be of classical rather than quantum origin and that during inflation, particle production from interactions ...
Arjun Berera
doaj   +1 more source

Recent Developments in Warm Inflation

open access: yesUniverse, 2023
Warm inflation, its different particle physics model implementations, and the implications of dissipative particle production for its cosmology are reviewed.
Vahid Kamali   +2 more
doaj   +1 more source

Looking inside the Swampland from Warm Inflation: Dissipative Effects in De Sitter Expansion

open access: yesUniverse, 2023
This paper reviews the theoretical and phenomenological implications of the swampland conjectures from the perspective of inflationary cosmology, focusing on warm inflation.
Arjun Berera, Jaime Calderón-Figueroa
doaj   +1 more source

Inflation and cosmological constant [PDF]

open access: yesPhysica Scripta, 2021
Abstract In construction of an inflationary model, one usually assumes that the matter sector of the gravitational action is minimally coupled to the background. It means that the matter (inflaton) part of the action is coupled with the same metric of the gravitational part.
openaire   +2 more sources

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