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Optics Communications

Preparation of superpositions of Fock states via the interaction of a multi-level atom with the field

Shi-Biao Zheng

Published Sep 1, 1998• 8 citations
Publisher
DOI
10.1016/s0030-4018(98)00309-5

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A single two-level atom can be used to prepare an arbitrary photon number state (Fock state) in a high Q cavity . The atom undergoes a controlled succession of interactions with two cavity modes. One of them contains a coherent field. The atom transfers photons one by one from this field to the initially empty second mode. The scheme can be extended to prepare a quantum superposition of the vacuum with a Fock state, a highly non-classical situation. We discuss the feasibility of the experiment with our present Rydberg-atom cavity QED set-up.