On the generation and identification of optical Schrödinger cats
arXiv:quant-ph/0005083 · doi:10.1016/S0375-9601(00)00363-7
Abstract
We discuss the possibility of generating and detecting, by a tomographic reconstruction of the Wigner function, a macroscopic superposition of two coherent states. The superposition state is created using a conditioned measurement on the polarisation of a probe photon entangled to a coherent state. The entanglement is obtained using a Kerr cell inserted in a Mach-Zender interferometer. Some hint about generation of GHZ states is given as well.
accepted for publication