Counterpropagating continuous-variable entangled states in lossy coupled-cavity optical waveguides

@article{Seifoory2019CounterpropagatingCE,
  title={Counterpropagating continuous-variable entangled states in lossy coupled-cavity optical waveguides},
  author={Hossein Seifoory and Lukas G. Helt and John E. Sipe and Marc M. Dignam},
  journal={Physical Review A},
  year={2019}
}
We present an integrated source of counterpropagating entangled states based on a coupled resonator optical waveguide that is pumped by a classical pulsed source incident from above the waveguide. We investigate theoretically the generation and propagation of continuous variable entangled states in this coupled-cavity system in the presence of intrinsic loss. Using a tight-binding approximation, we derive analytic time-dependent expressions for the number of photons in each cavity, as well as… 

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