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Generating and probing a two-photon Fock state with a single atom in a cavity

P. Bertet·S. Osnaghi·P. Milman·A. Auffeves·P. Maioli·M. Brune·J. M. Raimond·S. Haroche
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Abstract

A two-photon Fock state is prepared in a cavity sustaining a "source mode " and a "target mode", with a single circular Rydberg atom. In a third-order Raman process, the atom emits a photon in the target while scattering one photon from the source into the target. The final two-photon state is probed by measuring by Ramsey interferometry the cavity light shifts induced by the target field on the same atom. Extensions to other multi-photon processes and to a new type of micromaser are briefly discussed.

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P. Bertet, S. Osnaghi, P. Milman, A. Auffeves, P. Maioli, M. Brune, J. M. Raimond, S. Haroche. 2001-11-21. Generating and probing a two-photon Fock state with a single atom in a cavity. https://doi.org/10.1103/physrevlett.88.143601

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