Results 1 to 10 of about 241,063 (254)

Recent Developments in Warm Inflation [PDF]

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   +2 more sources

Cosmology without inflation [PDF]

open access: yesPhysical 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 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   +3 more sources

Relativistic Cosmology with an Introduction to Inflation [PDF]

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 Multidimensional Quantum Cosmology [PDF]

open access: yesPhysical 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

Relaxation of the cosmological constant at inflation? [PDF]

open access: greenPhysical Review D, 2000
11 ...
Валерий Анатольевич Рубаков
openalex   +5 more sources

Cosmology, inflation, and the physics of nothing [PDF]

open access: green, 2003
These four lectures cover four topics in modern cosmology: the cosmological constant, the cosmic microwave background, inflation, and cosmology as a probe of physics at the Planck scale. The underlying theme is that cosmology gives us a unique window on the ``physics of nothing,'' or the quantum-mechanical properties of the vacuum.
William H. Kinney
openalex   +5 more sources

Cosmological parameters in noncommutative inflation [PDF]

open access: greenPhysics Letters B, 2004
We investigate how the uncertainty of noncommutative spacetime could explain the WMAP data. For this purpose, the spectrum is divided into the IR and UV region. We introduce a noncommutative parameter of $ _0$ in the IR region and a noncommutative parameter of $ _0$ in the UV region.
Yun Soo Myung
openalex   +5 more sources

Status of observational cosmology and inflation

open access: green, 2003
We review the latest developments in the determination of the cosmological parameters from the measurement of the Cosmic Microwave Background Radiation (CMBR) anisotropies and of the Large Scale Structure (LSS) of the Universe. We comment finally on the implications for the primordial spectrum and the consequences for inflationary models.
Laura Covi
openalex   +5 more sources

Home - About - Disclaimer - Privacy