Hall effect of light.

@article{Onoda2004HallEO,
  title={Hall effect of light.},
  author={Masaru Onoda and Shuichi Murakami and Naoto Nagaosa},
  journal={Physical review letters},
  year={2004},
  volume={93 8},
  pages={
          083901
        }
}
We derive the semiclassical equation of motion for the wave packet of light taking into account the Berry curvature in momentum-space. This equation naturally describes the interplay between orbital and spin angular momenta, i.e., the conservation of the total angular momentum of light. This leads to the shift of wave-packet motion perpendicular to the gradient of the dielectric constant, i.e., the polarization-dependent Hall effect of light. An enhancement of this effect in photonic crystals… 

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