Angular momentum and orbital waves in the anisotropic A phase of superfluid He3
Volovik G. E.
The angular-momentum density of He3 in the A phase is calculated. Equations for the orbital waves are derived on the basis of the commutation relations for the components of the angular momentum. The effective mass of the orbital excitations turns out to be of the order of m(Tc/£F)2)n(eF/Tc).