We investigate multiphoton states generated by high-gain optical parametric amplification of a single injected photon-polarization encoded as a qubit. The experimental configuration exploits the optimal phase-covariant cloning. The output state of the apparatus is found to exhibit the quantum superposition property of mesoscopic multiphoton assemblies involving about 300 photons. This work represents an experimental advance toward the test of several fundamental quantum processes in mesoscopic or macroscopic frameworks.
Experimental high-gain quantum-injected optical parametric amplification and multiphoton phase-covariant cloning / Caminati, Marco Bright; DE MARTINI, Francesco; Sciarrino, Fabio. - In: LASER PHYSICS. - ISSN 1054-660X. - 16:11(2006), pp. 1551-1556. [10.1134/s1054660x06110089]
Experimental high-gain quantum-injected optical parametric amplification and multiphoton phase-covariant cloning
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. The experimental configuration exploits the optimal phase-covariant cloning. The output state of the apparatus is found to exhibit the quantum superposition property of mesoscopic multiphoton assemblies involving about 300 photons. This work represents an experimental advance toward the test of several fundamental quantum processes in mesoscopic or macroscopic frameworks.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
