Results 41 to 50 of about 74,976 (149)

Islands in cosmology [PDF]

open access: yesJournal of High Energy Physics, 2020
Abstract A quantum extremal island suggests that a region of spacetime is encoded in the quantum state of another system, like the encoding of the black hole interior in Hawking radiation. We study conditions for islands to appear in general spacetimes, with or without black holes.
Thomas Hartman   +2 more
openaire   +4 more sources

Precision cosmology, Accuracy cosmology and Statistical cosmology [PDF]

open access: yesProceedings of the International Astronomical Union, 2014
AbstractThe avalanche of data over the past 10-20 years has propelled cosmology into the “precision era”. The next challenge cosmology has to meet is to enter the era of accuracy. Because of the intrinsic nature of studying the Cosmos and the sheer amount of data available now and coming soon, the only way to meet this challenge is by developing ...
openaire   +2 more sources

Relativity Cosmology

open access: yesSSRN Electronic Journal, 2023
This paper presents the perspective that universe is relative. The universe, which changes according to the observer’s proper time, is dynamic. Generally, the universe expands, but if the observer accelerates enough, contraction is also possible. The Hubble parameter merely represents that change.
openaire   +2 more sources

Cosmological parameter estimation and the inflationary cosmology [PDF]

open access: yesPhysical Review D, 2002
15 pages RevTeX file with figures incorporated. Slow-roll inflation module for use with the CAMB program can be found at http://astronomy.cpes.susx.ac.uk/~sleach/inflation/ This version corrects a typo in the definition of z_S (after Eq.1) and supersedes the journal ...
Leach, SM   +3 more
openaire   +3 more sources

Cosmological Bounce and the Cosmological Constant Problem

open access: yesSSRN Electronic Journal, 2022
32 pages, 9 ...
Pavlović, Petar, Sossich, Marko
openaire   +3 more sources

International Society of Philosophy and Cosmology: Fifteen-Year History and Modernity [PDF]

open access: yesФилософия и космология, 2019
This article is an attempt to summarize the obtaining of the International Society of Philosophy and Cosmology (ISPC) activities for the fifteen years since its inception.
Denys Svyrydenko, Hleb Khomenko
doaj   +1 more source

The Part of the Whole. Cosmology as an Empirical and Analytical Concept

open access: yesTemenos, 2009
In the study of Old Norse religion, mythology and cosmology are two core concepts frequently used in inter-disciplinary discussions as to the content, changes and spread of the pre-Christian religion in Scandinavia.
CATHARINA RAUDVERE
doaj   +1 more source

Inflationary cosmology [PDF]

open access: yesPhysics Reports, 2000
I give a general review of the history of inflationary cosmology and of its present status.
openaire   +2 more sources

SIGNS AND COSMOLOGY [PDF]

open access: yesInternational Journal of Modern Physics D, 2012
Using a new effective action predicted from quantum gravity where the sign of the Euclidean Einstein action is reversed, we discuss Wentzel–Kramers–Brillouin (WKB) solutions in quantum cosmology and predict that this sign change might explain the origin of phantom scalars.
Arundhati Dasgupta, Adamantia Zampeli
openaire   +3 more sources

QUANTUM COSMOLOGY [PDF]

open access: yesAnnals of the New York Academy of Sciences, 1993
10 pages, TUTP-92 ...
openaire   +3 more sources

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