On the thermodynamic and quantum fluctuations of the cosmological constant |
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Authors: | G E Volovik |
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Institution: | (1) Low Temperature Laboratory, Helsinki University of Technology, Box 2200, FIN-02015 HUT, Finland;(2) Landau Institute for Theoretical Physics, Russian Academy of Sciences, Moscow, 119334, Russia |
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Abstract: | We discuss, from a condensed-matter point of view, the recent idea that the Poisson fluctuations of the cosmological constant about zero could be a source of the observed dark energy 1, 2]. We argue that the thermodynamic fluctuations of Λ are much bigger. Since the amplitude of the fluctuations is ∝ V?1/2, where V is the volume of the universe, the present constraint on the cosmological constant provides a lower limit for V that is much larger than the volume within the cosmological horizon. |
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