Results 1 to 10 of about 48,555 (187)
Inflation from supersymmetric quantum cosmology [PDF]
Physical Review D, 2010 14 pages, latex2e, To appear in Phys.
Socorro, J., D'Oleire, Marco
core +7 more sources
Inflation and Fractional Quantum Cosmology
Fractal 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 +3 more sources
Cosmology without inflation [PDF]
Physical Review D, 2008 We propose a new cosmological paradigm in which our observed expanding phase is originated from an initially large contracting Universe that subsequently experienced a bounce. This category of models, being geodesically complete, is non-singular and horizon-free, and can be made to prevent any relevant scale to ever have been smaller than the Planck ...
Peter, Patrick, Pinto-Neto, Nelson
openaire +4 more sources
Inflation in multidimensional quantum cosmology [PDF]
Physical Review D, 1996 We extend to multidimensional cosmology Vilenkin's prescription of tunnelling from nothing for the quantum origin of the observable Universe. Our model consists of a $D+4$-dimensional spacetime of topology ${\cal R}\times {\cal S}^3 \times{\cal S}^D$, with a scalar field (``chaotic inflaton'') for the matter component.
Carugno, Enrico +3 more
openaire +5 more sources
Constraining barrow entropy-based cosmology with power-law inflation [PDF]
European 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
Early and late universe holographic cosmology from a new generalized entropy
Physics 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
Universe, 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
Universe, 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
Universe, 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
Universe, 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