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Complete analysis of measurement-induced entanglement localization on a three-photon system
Miroslav Gavenda, Radim Filip, Eleonora Nagali +2
We discuss both theoretically and experimentally elementary two-photon polarization entanglement localization after break of entanglement caused by linear coupling of environmental…
Towards Quantum Experiments with Human Eyes Detectrors Based on Cloning via Stimulated Emission ?
Francesco De Martini
We believe that a recent, unconventional theoretical work published in Physical Review Letters 103, 113601 (2009) by Sekatsky, Brunner, Branciard, Gisin, Simon, albeit appealing at…
Entanglement localization after a coupling to incoherent noisy system
Fabio Sciarrino, Eleonora Nagali, Francesco De Martini +2
We report the experimental realization of entanglement localization which restores polarization entanglement completely redirected after a linear coupling with incoherent and noisy…
Wigner-function theory and decoherence of the quantum-injected optical parametric amplifier
Nicolo' Spagnolo, Chiara Vitelli, Tiziano De Angelis +2
Recent experimental results demonstrated the generation of a quantum superpositon (MQS), involving a number of photons in excess of 5x10^4, which showed a high resilience to losses…
Anomalous lack of decoherence of the Macroscopic Quantum Superpositions based on phase-covariant Quantum Cloning
Francesco De Martini, Fabio Sciarrino, Nicolo' Spagnolo
We show that all Macroscopic Quantum Superpositions (MQS) based on phase-covariant quantum cloning are characterized by an anomalous high resilence to the de-coherence processes. T…
Entanglement and Quantum Superposition of a Macroscopic - Macroscopic system
Francesco De Martini
Two quantum Macro-states and their Macroscopic Quantum Superpositions (MQS) localized in two far apart, space - like separated sites can be non-locally correlated by any entangled…
Polarization control of single photon quantum orbital angular momentum states
E. Nagali, F. Sciarrino, F. De Martini +4
The orbital angular momentum of photons, being defined in an infinitely dimensional discrete Hilbert space, offers a promising resource for high-dimensional quantum information pro…
Decoherence, Einselection and Classicality of a Macroscopic Quantum Superposition generated by Quantum Cloning
Francesco De Martini, Fabio Sciarrino, Nicolo' Spagnolo
The high resilience to de-coherence shown by a recently discovered Macroscopic Quantum Superposition (MQS) generated by a quantum injected optical parametric amplifier (QI-OPA) and…