Results 41 to 50 of about 74,976 (149)
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
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Precision cosmology, Accuracy cosmology and Statistical cosmology [PDF]
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 ...
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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.
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Cosmological parameter estimation and the inflationary cosmology [PDF]
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
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Cosmological Bounce and the Cosmological Constant Problem
32 pages, 9 ...
Pavlović, Petar, Sossich, Marko
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International Society of Philosophy and Cosmology: Fifteen-Year History and Modernity [PDF]
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
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The Part of the Whole. Cosmology as an Empirical and Analytical Concept
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
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I give a general review of the history of inflationary cosmology and of its present status.
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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
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