Phys. Rev. Lett. 88, 143601 (2002) [4 pages]Generating and Probing a Two-Photon Fock State with a Single Atom in a CavityReceived 20 November 2001; published 25 March 2002 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 multiphoton processes and to a new type of micromaser are briefly discussed. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.143601
DOI:
10.1103/PhysRevLett.88.143601
PACS:
42.50.Dv, 42.50.Ct, 42.55.Ye
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