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03 November 2024
 
  » arxiv » astro-ph/0510492

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Darker Side of the Universe
T. Padmanabhan ;
Date 17 Oct 2005
AbstractObservations suggest that nearly seventy per cent of the energy density in the universe is unclustered and exerts negative pressure. Theoretical understanding of this component (`dark energy’), which is driving an accelerated expansion of the universe, is {it the} problem in cosmology today. I discuss this issue with special emphasis on the cosmological constant as the possible choice for the dark energy. Several curious features of a universe with a cosmological constant are described and some possible approaches to understand the nature of the cosmological constant are discussed.
Source arXiv, astro-ph/0510492
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