Bogoliubov transformation for a spatially varying gap

W.K. Wootters

Physica A: Statistical Mechanics and its Applications, 1978, vol. 90, issue 2, 317-324

Abstract: It is shown that a general Bogoliubov transformation can be used as an alternative to Gorkov's equations in studying the properties of superfluid 3He with a position-dependent gap matrix. Expressions are derived for the current density and the gradient free energy which are exact to first and second order, respectively, in the spatial inhomogeneity.

Date: 1978
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:90:y:1978:i:2:p:317-324

DOI: 10.1016/0378-4371(78)90117-6

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