We investigate multiphoton states generated by high‐gain optical parametric amplification of a single injected photon, polarization encoded as a “qubit”. Two different experimental configurations were adopted in order to investigate two different quantum processes: the optimal universal quantum cloning and the optimal phase‐covariant cloning. The output states of the two apparatuses were found to show the quantum superposition property of mesoscopic multi‐photon assemblies and the entanglement characteristics of the “Schroedinger Cat State”. This work represents an experimental attempt to test several fundamental quantum processes in a mesoscopic, or macroscopic frameworks. As it is well known, this is indeed one of the most challenging endavours of modern science.
Einstein Podolsky Rosen correlations involving mesoscopic quantum systems / Caminati, Marco Bright; DE MARTINI, Francesco; Sciarrino, Fabio. - In: AIP CONFERENCE PROCEEDINGS. - ISSN 0094-243X. - 844:(2006), pp. 37-48. (Intervento presentato al convegno Are There Quantum Jumps? And On the Present Status of Quantum Mechanics tenutosi a Losinj; Croatia) [10.1063/1.2219351].
Einstein Podolsky Rosen correlations involving mesoscopic quantum systems
CAMINATI, Marco Bright;DE MARTINI, Francesco;SCIARRINO, Fabio
2006
Abstract
We investigate multiphoton states generated by high‐gain optical parametric amplification of a single injected photon, polarization encoded as a “qubit”. Two different experimental configurations were adopted in order to investigate two different quantum processes: the optimal universal quantum cloning and the optimal phase‐covariant cloning. The output states of the two apparatuses were found to show the quantum superposition property of mesoscopic multi‐photon assemblies and the entanglement characteristics of the “Schroedinger Cat State”. This work represents an experimental attempt to test several fundamental quantum processes in a mesoscopic, or macroscopic frameworks. As it is well known, this is indeed one of the most challenging endavours of modern science.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
