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Effect of an Excitation Energy on the Specific Heat of Liquid Helium II and Its Relation to the Exchange Effect in a Non-Ideal Bose-Einstein Gas

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Abstract

IT has been suggested that, for the explanation of the abnormal properties of liquid helium II, a division of the molecules into molecules ‘at rest’ and ‘moving’ ones is an essential feature1,2,3. The free path for collision between molecules of different systems should be very large.

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References

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Authors and Affiliations

  1. Van der Waals Laboratorium, Amsterdam

    A. MICHELS, A. BIJL & J. DE BOER

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  1. A. MICHELS
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  2. A. BIJL
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  3. J. DE BOER
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MICHELS, A., BIJL, A. & DE BOER, J. Effect of an Excitation Energy on the Specific Heat of Liquid Helium II and Its Relation to the Exchange Effect in a Non-Ideal Bose-Einstein Gas. Nature 144, 594–595 (1939). https://doi.org/10.1038/144594b0

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