On the generation and identification of optical Schrödinger cats

Details On the generation and identification of optical Schrödinger cats On the generation and identification of optical Schrödinger cats

2000-05-19

arxiv.org/abs/quant-ph/0005083v1

Phys.Lett. A271 (2000) 48-53

Physics

Quantum Physics

accepted for publication

Scientific paper

10.1016/S0375-9601(00)00363-7

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.

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