Results 51 to 60 of about 180,985 (262)
Generation of large-scale magnetic fields, non-Gaussianity, and primordial gravitational waves in inflationary cosmology [PDF]
, 2014 The generation of large-scale magnetic fields in inflationary cosmology is explored, in particular, in a kind of moduli inflation motivated by racetrack inflation in the context of the type IIB string theory.
K. Bamba
semanticscholar +1 more source
Pre-inflationary universe in loop quantum cosmology [PDF]
, 2017 The evolutions of the flat FLRW universe and its linear perturbations are studied systematically in the dressed metric approach of LQC. When it is dominated by the kinetic energy of the inflaton at the quantum bounce, the evolution of the background can ...
Tao Zhu +4 more
semanticscholar +1 more source
Physics Reports, 2000 I give a general review of the history of inflationary cosmology and of its present status.
openaire +2 more sources
Why Flat Space Cosmology Is Superior to Standard Inflationary Cosmology
, 2018 Following recent Cosmic Microwave Background (CMB) observations of global spatial flatness, only two types of viable cosmological models remain: inflationary models which almost instantaneously attain cosmic flatness following the Big Bang; and non ...
E. Tatum
semanticscholar +1 more source
Hybrid Loop Quantum Cosmology: An Overview
Frontiers in Astronomy and Space Sciences, 2021 Loop Quantum Gravity is a nonperturbative and background independent program for the quantization of General Relativity. Its underlying formalism has been applied successfully to the study of cosmological spacetimes, both to test the principles and ...
Beatriz Elizaga Navascués +1 more
doaj +1 more source
Inflationary cosmology from quantum conformal gravity [PDF]
, 2014 We analyze the functional integral for quantum conformal gravity and show that, with the help of a Hubbard–Stratonovich transformation, the action can be broken into a local quadratic-curvature theory coupled to a scalar field.
P. Jizba, H. Kleinert, F. Scardigli
semanticscholar +1 more source
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 +1 more source
Inflationary cosmology with nonlinear dispersion relations [PDF]
, 2013 We present a technique, {\em the uniform asymptotic approximation}, to construct accurate analytical solutions of the linear perturbations of inflation after quantum effects of the early universe are taken into account, for which the dispersion relations
Tao Zhu +4 more
semanticscholar +1 more source
A New Hilbert's Hotel Argument Against Past‐Eternalism
Analytic Philosophy, EarlyView.ABSTRACT This paper offers a new formulation of the “Hilbert's Hotel Argument” (HHA) which is superior to existing formulations because it (1) demonstrates that HH is logically impossible in the concrete world, (2) takes into account the need to consider the assumptions of HHA, and (3) offers a reply to an important objection concerning the validity of
Andrew Ter Ern Loke, Eli Haitov
wiley +1 more source
Inflationary cosmologies from compactification? [PDF]
Physical Review D, 2004 22 pages ...
openaire +2 more sources