Superfluid current in 3He-A at T=0
Abstract
In order to obtain the supercurrent in 3He-A at T=0, Gor'kov's equations are solved exactly for an order parameter linearized with respect to spatial variations. We obtain various nonanalytical second-order corrections to the standard expression. In the current perpendicular to l^, we find a contribution |l^×curll^|(curll^)⊥. In the current parallel to l^, we have a term |l^×curll^|[v-->s-(ℏ4m)curll^]∥ and another one |l^×curll^|(∂xl^y+∂yl^x), where the x and y axes are along (curl l^)⊥ and l^×curll^.
- Publication:
-
Physical Review B
- Pub Date:
- November 1983
- DOI:
- 10.1103/PhysRevB.28.5140
- Bibcode:
- 1983PhRvB..28.5140C