Entanglement, EPR correlations and mesoscopic quantum superposition by the high-gain quantum injected parametric amplification

Details Entanglement, EPR correlations and mesoscopic quantum superposition by the high-gain quantum injected parametric amplification Entanglement, EPR correlations and mesoscopic quantum superposition by the high-gain quantum injected parametric amplification

2006-09-13

arxiv.org/abs/quant-ph/0609100v1

Phys. Rev. A 74, 062304 (2006)

Physics

Quantum Physics

9 pages, 5 figures

Scientific paper

10.1103/PhysRevA.74.062304

We investigate the multiparticle quantum superposition and the persistence of multipartite entanglement of the quantum superposition generated by the quantum injected high-gain optical parametric amplification of a single photon. The physical configuration based on the optimal universal quantum cloning has been adopted to investigate how the entanglement and the quantum coherence of the system persists for large values of the nonlinear parametric gain g.

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