Measurement-induced quantum operations on multiphoton states

Anno: 2010

Autori: Vitelli C., Spagnolo N., Sciarrino F., De Martini F.

Affiliazione autori: 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.

Giornale/Rivista: PHYSICAL REVIEW A

Volume: 82 (6)      Da Pagina: 62319-1  A: 62319-11

Maggiori informazioni: We acknowledge support from the Futuro in Ricerca Project HYTEQ, and Progetto d’Ateneo of Sapienza Universita di Roma.
Parole chiavi: Amplification
DOI: 10.1103/PhysRevA.82.062319

Citazioni: 6
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18
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