Multiparticle Quantum Superposition and Stimulated Entanglement by Parity Selective Amplification of Entangled States

Francesco De Martini, Giovanni Di Giuseppe
2001 Zeitschrift fur Naturforschung A-A Journal of Physical Sciences  
AbstractA multiparticle quantum superposition state has been generated by a novel phase-selective parametric amplifier of an entangled two-photon state. This realization is expected to open a new field of investigations on the persistence of the validity of the standard quantum theory for systems of increasing complexity, in a quasi decoherence-free environment. Because of its nonlocal structure the new system is expected to play a relevant role in the modem endeavor on quantum information and
more » ... um information and in the basic physics of entanglement. - Pacs: 03.65.Bz, 03.67.-a, 42.50.Ar, 89.70.+C
doi:10.1515/zna-2001-0110 fatcat:efiilit7gnbzfejstyna27g4ca