Schemes to generate Schrödinger cat states of light (PRA(R) 2004, PRA(R) 2004)
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[2] A. P. Lund, H. Jeong, T. C. Ralph, and M. S. Kim, Conditional production of superpositions of coherent states with inefficient photon detection, Phys. Rev. A 70, 020101 (2004).