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On thermodynamic and quantum fluctuations of cosmological constant | | G.E. Volovik
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2 Jun 2004 | | Journal: | JETP Lett. 80 (2004) 465-468 | | Subject: | General Relativity and Quantum Cosmology; Statistical Mechanics | gr-qc cond-mat.stat-mech hep-ph | | Abstract: | We discuss from the condensed-matter point of view the recent idea that the Poisson fluctuations of cosmological constant about zero could be a source of the observed dark energy. We argue that the thermodynamic fluctuations of Lambda are much bigger. Since the amplitude of fluctuations is proportional to V^{-1/2}, where V is the volume of the Universe, the present constraint on the cosmological constant provides the lower limit for V, which is much bigger than the volume within the cosmological horizon. | | Source: | arXiv, gr-qc/0406005 | | Services: | Forum | Review | PDF | Favorites | |
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