Results 1 to 10 of about 587,708 (293)
Inflation and Fractional Quantum Cosmology [PDF]
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 +4 more sources
Recent Developments in Warm Inflation [PDF]
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 +4 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.
A. Ashtekar +7 more
core +6 more sources
Inflation in the Rényi cosmology [PDF]
Modern Physics Letters A, 2019 The description of the accelerated phases for the current and primordial cosmos has been obtained in the framework of Rényi cosmology. The results show that corrections to the Friedmann equations, originated from differences between Rényi and Bekenstein ...
H. Moradpour +3 more
semanticscholar +5 more sources
Relativistic Cosmology with an Introduction to Inflation [PDF]
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 +3 more sources
Inflationary Cosmology in Modified Gravity Theories
Symmetry, 2015 We review inflationary cosmology in modified gravity such as R2 gravity with its extensions in order to generalize the Starobinsky inflation model. In particular, we explore inflation realized by three kinds of effects: modification of gravity, the ...
Kazuharu Bamba, Sergei D. Odintsov
doaj +4 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
Inflation in loop quantum cosmology [PDF]
Physical Review D, 2018 We develop a consistent analytic approach to determine the conditions under which slow roll inflation can arise when the inflaton is the same scalar field that is responsible for the bounce in Loop Quantum Cosmology (LQC).
A. Bhardwaj, E. Copeland, J. Louko
semanticscholar +5 more sources
Inflation in Multidimensional Quantum Cosmology [PDF]
Physical Review D, 1995 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 ...
A. D. Linde +28 more
core +5 more sources
Cosmic Inflation, Quantum Information and the Pioneering Role of John S Bell in Cosmology [PDF]
Universe, 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 +2 more sources