On the Chemical Potential of Dark Energy

S. H. Pereira

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arXiv · 0806.3701

On the Chemical Potential of Dark Energy

S. H. Pereira

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Abstract

It is widely assumed that the observed universe is accelerating due to the existence of a new fluid component called dark energy. In this article, the thermodynamics consequences of a nonzero chemical potential on the dark energy component is discussed with special emphasis to the phantom fluid case. It is found that if the dark energy fluid is endowed with a negative chemical potential, the phantom field hypothesis becomes thermodynamically consistent with no need of negative temperatures as recently assumed in the literature.

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S. H. Pereira. 2008-06-23. On the Chemical Potential of Dark Energy. https://arxiv.org/abs/0806.3701

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