A generalized Ginzburg-Landau approach to the superfluidity of helium 3
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- Cross, M.C. J Low Temp Phys (1975) 21: 525. doi:10.1007/BF01141607
The coefficients in the expansion of the free energy and supercurrents in gradients of the order parameter are calculated from the microscopic Hamiltonian for all temperatures, first for a gas model and then including Fermi liquid corrections. This provides the basis for a simple discussion of the supercurrents and collective modes. The magnitude of the intrinsic orbital angular momentum in the Anderson-Brinkman-Morel phase is calculated, and found to beTc/EF smaller than previous estimates.
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