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Calculation of First Sound Speed in Liquid Helium |
| PAO Lu;Joseph P.Foy |
| Department of Physics and Astronomy, Arizona State University, Tempe, Arizona 85287, USA |
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| Cite this article: |
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PAO Lu, Joseph P.Foy 1999 Chin. Phys. Lett. 16 276-278 |
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Abstract The speed of first sound in liquid helium II is calculated quantum mechanically. The calculation is made by using a modified version of Brueckner and Sawada’s method [Phys. Rev. 106 (1959) 1128] and is based on the postulate that the hard core length is directly proportional to the negative of the pressure.
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| Keywords:
67.40.Mj
67.55.Cx
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Published: 01 April 1999
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