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Mechanocaloric and Thermomechanical Effects in Bose-Einstein Condensed Systems

G. C. Marques·V. S. Bagnato·S. R. Muniz·D. Spehler
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Abstract

In this paper we extend previous hydrodynamic equations, governing the motion of Bose-Einstein-condensed fluids, to include temperature effects. This allows us to analyze some differences between a normal fluid and a Bose-Einstein-condensed one. We show that, in close analogy with superfluid He-4, a Bose-Einstein-condensed fluid exhibits the mechanocaloric and thermomechanical effects. In our approach we can explain both effects without using the hypothesis that the Bose-Einstein-condensed fluid has zero entropy. Such ideas could be investigated in existing experiments.

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BibTeXRIS

G. C. Marques, V. S. Bagnato, S. R. Muniz, D. Spehler. 2005-08-22. Mechanocaloric and Thermomechanical Effects in Bose-Einstein Condensed Systems. https://doi.org/10.1103/physreva.69.053808

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