Generating entangled superpositions of macroscopically distinguishable states within a parametric oscillator

Abstract

We suggest a variant of the recently proposed experiment for the generation of a new kind of Schroedinger-cat states, using two coupled parametric down-converter nonlinear crystals [F. De Martini, Phys. Rev. Lett. 81, 2842 (1998)]. We study the parametric oscillator case and find that an entangled Schroedinger-cat type state of two cavities, whose mirrors are placed along the output beams of the nonlinear crystals, can be realized under suitable conditions.

RevTeX 17 pages, 9 eps files for 7 figures. Submitted to Physical Review A

References in corpus (6)

• Experimental quantum teleportation
• Experimental Realization of Teleporting an Unknown Pure Quantum State via Dual Classical and Einstein-Podolski-Rosen Channels
• Ultra-bright source of polarization-entangled photons
• Observation of three-photon Greenberger-Horne-Zeilinger entanglement
• Decoherence, Chaos, and the Correspondence Principle
• Entanglement engineering of one-photon wavepackets using a single-atom source

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