Microscopic theory of superfluid3He-superfluid4He solutions II. Acoustical approximation. Propagation of sounds |
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| Authors: | Prof Dr Zygmunt M Galasiewicz |
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| Institution: | 1. Institute of Theoretical Physics, University of Wroclaw, Wroclaw, Poland
2. Institute of Low Temperatures and Structure Research, Polish Academy of Sciences, Wroclaw, Poland
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| Abstract: | Linearized hydrodynamic equations for superfluid3He-superfluid4He solutions are examined. The addition of a new parameter, the velocity of the Fermi-pair condensate, increases the number of equations and, in consequence, the rank of the determinant of the equations. This leads to a new energy root of the determinant which describes an extra sound mode different from the first and second sound. |
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