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On thermodynamic and quantum fluctuations of cosmological constant

G. E. Volovik
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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.

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G. E. Volovik. 2004-09-06. On thermodynamic and quantum fluctuations of cosmological constant. https://doi.org/10.1134/1.1839291

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