Separable interactions and liquid 3He

F.W. Nijhoff and H.W. Capel

Physica A: Statistical Mechanics and its Applications, 1981, vol. 106, issue 3, 369-397

Abstract: A rigorous expression is given for the free energy of a system of fermions in the presence of a magnetic field interacting via a pairing hamiltonian in the weak-coupling limit. Starting from this expression Landau expansions are derived in two special cases, i.e. the case of general l-wave pairing in zero field and the case of l = 1 pairing, which applies to liquid 3He, in non-zero field.

Date: 1981
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:106:y:1981:i:3:p:369-397

DOI: 10.1016/0378-4371(81)90119-9

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