Accession Number:

AD0259867

Title:

THERMODYNAMIC BEHAVIOR OF LIQUID HELIUM THREE IN ITS POSSIBLE SUPERFLUID PHASE I

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV BERKELEY

Personal Author(s):

Report Date:

1961-12-01

Pagination or Media Count:

1.0

Abstract:

The thermodynamic behavior of liquid He-3 in its possible superfluid phase is investigated by extending the methods of Bueckner et al. Phys. Rev. 1181442, 1960. They suggest that such a correlated phase can exist at very low temperatures due to the fact that there exist attractive D-state interactions near the Fermi surface. The free energy and the energy gap of the system for D-state interactions corresponding to different pure azimuthal modes are calculated at different temperatures. It is found that 1 equals 2 m equals 2 and 1 equals 2 m equals 1 modes correspond to the lowest free energy of the system near the critical temperature and near T equals 0. In the intermediate range of temperatures the free energy curves for the two modes are very nearly the same. The 1 equals 2 m equals 0 mode yields a igher free energy for all temperatures less than the critical temperature. The mixing of modes is investigated near the critical temperature. Any linear combination of all the modes 1 equals 2 m equals 0, 1, -1, 2 and -2 lea s to a higher free energy which corresponds to the 1 equals 2 m equals 0 pure mode. The linear combination of 1 equals 2 m equals 0, m equals 1 and m equals 2 modes only leads to the lower free energy equal to the pure 1 equals 2 m equals 2 mode. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE