Coherent scattering of a multiphoton quantum superposition by a mirror BEC

Year: 2010

Authors: De Martini F., Sciarrino F., Vitelli C., Cataliotti F.S.

Autors Affiliation: Dipartimento di Fisica, Università di Roma la Sapienza, Piazzale Aldo Moro 2, I-00185 Roma, Italy; Accademia Nazionale Dei Lincei, Via della Lungara 10, I-00165 Roma, Italy; Dipartimento di Energetica and LENS, Università di Firenze, via N. Carrara 1, I-50019 Sesto (FI), Italy

Abstract: We present the proposition of an experiment in which the multiphoton quantum superposition consisting of N˜105 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.


Volume: 104 (5)      Pages from: 050403  to: 050403

More Information: We acknowledge interesting discussions with C. Fort, L. Fallani, and M. Inguscio. F. D. M. also acknowledges early discussions with Markus Aspelmeyer leading to the basic idea of the present proposal. This work is supported by MIUR (N. PRIN 06), FP7 CHIMONO.
KeyWords: Bose-Einstein condensation; Coherent scattering; Mirrors; Multiphoton processes; Optical parametric amplifiers; Parametric amplifiers; Particle beams; Photons; Statistical mechanics, Bose-Einstein condensates; Einstein-Podolsky-rosen; Interference structures; Macroscopic quantum; Multiphoton quantum superposition; Overall process; Single photon state; Single photons, Quantum entanglement
DOI: 10.1103/PhysRevLett.104.050403