Measurement-induced quantum operations on multiphoton states
Year: 2010
Authors: Vitelli C., Spagnolo N., Sciarrino F., De Martini F.
Autors Affiliation: Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy; Consorzio Nazl Interuniv Sci Fis Materia, I-00185 Rome, Italy; Consiglio Nazl Ric INO CNR, Ist Nazl Ott, I-50125 Florence, Italy; Accademia Nazl Lincei, I-00165 Rome, Italy.
Abstract: We investigate how multiphoton quantum states obtained through optical parametric amplification can be manipulated by performing a measurement on a small portion of the output light field. We study in detail how the macroqubit features are modified by varying the amount of extracted information and the strategy adopted at the final measurement stage. At last the obtained results are employed to investigate the possibility of performing a microscopic-macroscopic nonlocality test free from auxiliary assumptions.
Journal/Review: PHYSICAL REVIEW A
Volume: 82 (6) Pages from: 62319-1 to: 62319-11
More Information: We acknowledge support from the Futuro in Ricerca Project HYTEQ, and Progetto d’Ateneo of Sapienza Universita di Roma.KeyWords: AmplificationDOI: 10.1103/PhysRevA.82.062319Citations: 6data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-10References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here