Author(s): Meunier T, Gleyzes S, Maioli P, Auffeves A, Nogues G,
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Abstract Using an echo technique proposed by Morigi et al., we have time-reversed the atom-field interaction in a cavity quantum electrodynamics experiment. The collapse of the atomic Rabi oscillation in a coherent field is reversed, resulting in an induced revival signal. The amplitude of this "echo" is sensitive to nonunitary decoherence processes. Its observation demonstrates the existence of a mesoscopic quantum superposition of field states in the cavity between the collapse and the revival times.
This article was published in Phys Rev Lett
and referenced in Journal of Computer Science & Systems Biology