Separable interactions and liquid 3He

F.W. Nijhoff, H.W. Capel and A. Den Breems

Physica A: Statistical Mechanics and its Applications, 1985, vol. 130, issue 3, 375-411

Abstract: In this paper we derive the Landau expansion for the ordered phases of liquid 3He in the presence of a magnetic field starting from a model hamiltonian which contains an l = 1 pairing interaction of the BCS type and a contact term of the Hubbard type. In the derivation use is made of an exact theorem in the theory of separable interactions and the contribution from the Hubbard interaction is evaluated in second order perturbation calculation. Some typical differences with the results based on a spin fluctuation theory are mentioned.

Date: 1985
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:130:y:1985:i:3:p:375-411

DOI: 10.1016/0378-4371(85)90037-8

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