title: Coherent scattering of a multiphoton quantum superposition by a mirror BEC.
abstract: We present the proposition of an experiment in which the multiphoton quantum superposition consisting of N approximately 10{5} particles generated by a quantum-injected optical parametric amplifier, seeded by a single-photon belonging to an Einstein-Podolsky-Rosen entangled pair, is made to interact with a mirror-Bose-Einstein condensate (BEC) shaped as a Bragg interference structure. The overall process will realize a macroscopic quantum superposition involving a microscopic single-photon state of polarization entangled with the coherent macroscopic transfer of momentum to the BEC structure, acting in spacelike separated distant places.
authors.affiliation: Dipartimento di Fisica, Università di Roma La Sapienza, Piazzale Aldo Moro 2, I-00185 Roma, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: De Martini
authors.forename: Fabio
authors.initials: F
authors.lastname: Sciarrino
authors.forename: Chiara
authors.initials: C
authors.lastname: Vitelli
authors.forename: Francesco S
authors.initials: FS
authors.lastname: Cataliotti