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Foundations of Physics

On the quantum mechanical superposition of macroscopically distinguishable states

D. Gutkowski, M. V. Valdes Franco

Published Oct 1, 1983• 2 citations
Publisher
DOI
10.1007/bf00729517

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We propose a scheme to generate macroscopic superpositions of well-distinguishable coherent states in an optomechanical system via periodic qubit flipping. Our scheme does not require the single-photon strong-coupling rate of an optomechanical system. The generated mechanical superposition state can be reconstructed using mechanical quantum-state reconstruction. The proposed scheme relies on recycling of an atom, fast atomic qubit flipping, and coherent state mapping between a single-photon superposition state and an atomic superposition state. We discuss the experimental feasibility of our proposal under current technology.