M. Shifman, DEGENERACY AND CONTINUOUS DEFORMATIONS OF SUPERSYMMETRIC DOMAIN-WALLS, Physical review. D. Particles and fields, 57(2), 1998, pp. 1258-1265
Internal structure of these walls can continuously vary, without chang
ing the wall tension. This is described by hidden parameters (collecti
ve coordinates). Differentiating with respect to the collective coordi
nates one gets a set of the bosonic zero modes localized on the wall.
Neither of them is related to the spontaneous breaking of any symmetry
. Through the residual 1/2 of supersymmetry each bosonic zero mode gen
erates a fermionic partner.