Quantum tunneling in a Kerr medium with parametric pumping.

@article{Wielinga1993QuantumTI,
  title={Quantum tunneling in a Kerr medium with parametric pumping.},
  author={B J Wielinga and Milburn},
  journal={Physical review. A, Atomic, molecular, and optical physics},
  year={1993},
  volume={48 3},
  pages={2494-2496}
}