Results 1 to 10 of about 48,617 (195)

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

open access: diamondEuropean 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   +4 more sources

Inflation in Gauss-Bonnet brane cosmology [PDF]

open access: green, 2003
The effect of including a Gauss-Bonnet contribution in the bulk action is investigated within the context of the steep inflationary scenario. When inflation is driven by an exponential inflaton field, this Gauss-Bonnet term allows the spectral index of ...
James E. Lidsey, N. J. Nunes
openalex   +4 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

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   +1 more source

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   +1 more source

Pytanie o jedność nauki na przykładzie kosmologii antropicznej

open access: yesStudia Philosophiae Christianae, 2023
Given the ongoing process of the differentiation of sciences, it is worth posing a question about the possibility of them being integrated. This matter will be explored with reference to anthropic cosmology.
Sławomir Leciejewski
doaj   +1 more source

Tachyon field in loop cosmology

open access: yesPhysics Letters B, 2020
The evolutionary pictures of tachyon field in modified loop cosmology have been investigated. We present the dynamical behavior of the tachyon field associated with an exponential potential and find that the pre-inflation dynamics are very similar in ...
Kui Xiao
doaj   +1 more source

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