Orbital Angular Momentum of Anisotropic Superfluid

Abstract

The total relative orbital angular momentum of the system with A-B-M pariring is calculated. The refult is different from those of Anderson-Morel and Leggett. Much larger value has been obtained of the order of the total particle number multiplied by ½ℏ. The error made in their work is pointed out and the present result is discussed comparatively. An expression of the orbital angular momentum density is also given.