Physics of our days

Expanding Universe: slowdown or speedup?

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Akhiezer Institute for Theoretical Physics, National Science Center Kharkov Institute ofPhysics and Technology, ul. Akademicheskaya 1, Kharkiv, 61108, Ukraine

The kinematics and the dynamical interpretation of cosmological expansion are reviewed in a widely accessible manner with emphasis on the acceleration aspect. Virtually all the approaches that can in principle account for the accelerated expansion of the Universe are reviewed, including dark energy as an item in the energy budget of the Universe, modified Einstein equations, and, on a fundamentally new level, the use of the holographic principle.

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Fulltext is also available at DOI: 10.3367/UFNe.0182.201209c.0941
PACS: 04.50.Kd, 95.36.+x, 98.80.−k (all)
DOI: 10.3367/UFNe.0182.201209c.0941
Citation: Bolotin Yu L, Erokhin D A, Lemets O A "Expanding Universe: slowdown or speedup?" Phys. Usp. 55 876–918 (2012)
BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks
	author = {Yu. L. Bolotin and D. A. Erokhin and O. A. Lemets},
	title = {Expanding Universe: slowdown or speedup?},
	publisher = {Physics-Uspekhi},
	year = {2012},
	journal = {Phys. Usp.},
	volume = {55},
	number = {9},
	pages = {876-918},
	url = {},
	doi = {10.3367/UFNe.0182.201209c.0941}

Received: 25th, May 2011, revised: 24th, February 2012, 13th, March 2012

:   ,   ,    « : ?» 182 941–986 (2012); DOI: 10.3367/UFNr.0182.201209c.0941

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