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Generating entangled superpositions of macroscopically distinguishable states within a parametric oscillator

Francesco De Martini·Mauro Fortunato·Paolo Tombesi·David Vitali
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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.

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Francesco De Martini, Mauro Fortunato, Paolo Tombesi, David Vitali. 1999-02-25. Generating entangled superpositions of macroscopically distinguishable states within a parametric oscillator. https://doi.org/10.1103/physreva.60.1636

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