Berry’s phase and weak localization in multiple point-dipole scattering
The evolution of topological phases in multiple pointdipole scattering is explored. For both circular components of a multiply scattered wave, the topological phase may be expressed as the sum of a phase that appears due to evolution of the direction of the wave vector (k-redirection phase) and a phase that is due to evolution of the state of polarization (Pancharatnams phase). The polarization dependence in (weak localization) enhanced backscattering of light is shown to follow from the symmetry properties of Berry’s phase.