Dynamics of transient cat states in degenerate parametric oscillation with and without nonlinear Kerr interactions

@article{Teh2019DynamicsOT,
  title={Dynamics of transient cat states in degenerate parametric oscillation with and without nonlinear Kerr interactions},
  author={Run Yan Teh and Fengxiao Sun and Rodney Polkinghorne and Q. Y. He and Qihuang Gong and Peter D. Drummond and Margaret D. Reid},
  journal={Physical Review A},
  year={2019},
  volume={101},
  pages={043807}
}
A cat-state is formed as the steady-state solution for the signal mode of an ideal, degenerate parametric oscillator, in the limit of negligible single-photon signal loss. In the presence of the signal loss, this is no longer true over timescales much longer than the damping time. However, for sufficient parametric nonlinearity, a cat-state can exist as a transient state. In this paper, we study the dynamics of the creation and decoherence of cat-states in degenerate parametric oscillation… 

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