Spectral Flow and the Dynamics of Dislocations in Charge Density Waves
  The spectral flow in the cores of moving dislocations is found to play an important role in the dynamics and transport of charge density wave (CDW) by significantly modifying the hydrodynamic effective action of the condensate. The analogy of spectral flow in CDW with the baryogenesis in the early universe is pointed out. 
Masahiko Hayashi