A novel quantum optical interference experiment based on a delayed correlation technique and involving photons prepared in a polarization-entangled state is presented. The resulting phenomenology is found to be determined by the simultaneous realization of several non-classical interference processes of distinct nature albeit strictly interrelated. A formal interpretation of the results is attempted by a standard quantum analysis and by the adoption of a set of interfering Feynman diagrams. In addition, a physical interpre-tation at a deeper level is undertaken by introducing for the system the basic theoretical background of a new concept in quantum optics: entangled interferometry. As a relevant application of this new paradigm, a novel two-photon welcher-weg argument within a delayed-choice experiment is presented. It leads to an unexpected complementarity puzzle which expresses the manifestation of the EPR non-locality within the general context of interferometry. PACS numbers: 03.65.Bz, 42.50.-p, 42.50.Wm.
Entangled Non-Local Quantum Interferometry
DI GIUSEPPE, Giovanni;
1999-01-01
Abstract
A novel quantum optical interference experiment based on a delayed correlation technique and involving photons prepared in a polarization-entangled state is presented. The resulting phenomenology is found to be determined by the simultaneous realization of several non-classical interference processes of distinct nature albeit strictly interrelated. A formal interpretation of the results is attempted by a standard quantum analysis and by the adoption of a set of interfering Feynman diagrams. In addition, a physical interpre-tation at a deeper level is undertaken by introducing for the system the basic theoretical background of a new concept in quantum optics: entangled interferometry. As a relevant application of this new paradigm, a novel two-photon welcher-weg argument within a delayed-choice experiment is presented. It leads to an unexpected complementarity puzzle which expresses the manifestation of the EPR non-locality within the general context of interferometry. PACS numbers: 03.65.Bz, 42.50.-p, 42.50.Wm.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
