Caminati, Marco and Martini, Francesco De and Perris, Riccardo and Sciarrino, Fabio and Secondi, Veronica (2006) PART A-Quantum information-Entanglement, EPR correlations, and mesoscopic quantum superposition by the high-gain quantum injected parametric amplification. Physical Review-Section A-Atomic Molecular and Optical Physics, 74: 062304.
Full text not available from this repository.Abstract
We investigate the multiparticle quantum superposition and the persistence of bipartite entanglement of the output field 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.