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arXiv · 1709.08807

The generalized second law of thermodynamics and cosmological decoherence

Naritaka Oshita
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Abstract

We pointed out that the generalized second law of thermodynamics on a de Sitter universe whose energy density stochastically fluctuates due to quantum fluctuations is seemingly violated. We have shown that even in such a case, the generalized second law is unviolated by taking cosmological decoherence into account. It has been well known that the decoherence is necessary to give a reasonable reason why our universe looks classical. Our proposal can support the importance of decoherence from another aspect, i.e. the generalized second law of thermodynamics.

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Naritaka Oshita. 2017-09-26. The generalized second law of thermodynamics and cosmological decoherence. https://doi.org/10.1103/physrevd.97.023510

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