Light-shift-induced photonic nonlinearities

  title={Light-shift-induced photonic nonlinearities},
  author={Fernando G. S. L. Brand{\~a}o and Michael J. Hartmann and Martin Bodo Plenio},
  journal={New Journal of Physics},
We propose a new method to produce self- and cross-Kerr photonic nonlinearities, using light-induced Stark shifts due to the interaction of a cavity mode with atoms. The proposed experimental set-up is simpler than in previous approaches, while the strength of the nonlinearity obtained with a single atom is the same as in the setting based on electromagnetically induced transparency. Furthermore our scheme can be applied to engineer effective photonic nonlinear interactions whose strength… 

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