Micro-macro entangled photon systems: results and perspectives
Chiara Vitelli, Nicolò Spagnolo, Fabio Sciarrino, F. De Martini · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2009
In this work we present the realization of multiphoton quantum states, obtained by optical parametric amplification, and we investigate their perspectives and possible applications. The multiphoton quantum states are generated by a quantum-injected optical parametric amplifier (QI-OPA) seeded by a single-photon belonging to an EPR entangled pair. The entanglement between the micro-macroscopic photon system is experimentally demonstrated, and the possible applications of the macro-qubits states are presented and discussed.