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Proceedings Paper

Macroscopic quantum entanglement
Author(s): Francesco S. Cataliotti; Francesco De Martini; Fabio Sciarrino; Nicolò Spagnolo; Chiara Vitelli
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Paper Abstract

In the present work we propose to realize a macroscopic light-matter entangled state, obtained by the interaction of a multiphoton quantum superposition with a BEC system. The multiphoton quantum state is generated by a quantum-injected optical parametric amplifier (QI-OPA) seeded by a single-photon belonging to an EPR entangled pair and interacts with a Mirror-BEC shaped as a Bragg interference structure. The overall process will realize an entangled macroscopic quantum superposition involving a "microscopic" single-photon state of polarization and the coherent "macroscopic" displacement of the BEC structure acting in space-like separated distant places. This hybrid photonic-atomic system could open new perspectives on the possibility of coupling the amplified radiation with an atomic ensemble, a Bose-Einstein condensate, in order to implement innovative quantum interface between light and matter.

Paper Details

Date Published: 5 September 2008
PDF: 9 pages
Proc. SPIE 7092, Quantum Communications and Quantum Imaging VI, 70920T (5 September 2008); doi: 10.1117/12.797927
Show Author Affiliations
Francesco S. Cataliotti, Univ. di Firenze (Italy)
Francesco De Martini, Dipartimento di Fisica dell'Univ., La Sapienza (Italy)
Accademia Nazionale dei Lincei (Italy)
Fabio Sciarrino, Dipartimento di Fisica dell'Univ., La Sapienza (Italy)
Ctr. di Studi e Ricerche, Enrico Fermi (Italy)
Nicolò Spagnolo, Dipartimento di Fisica dell'Univ., La Sapienza (Italy)
Chiara Vitelli, Dipartimento di Fisica dell'Univ., La Sapienza (Italy)

Published in SPIE Proceedings Vol. 7092:
Quantum Communications and Quantum Imaging VI
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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