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Quantum state conversion by cross-Kerr interaction

J. Clausen·L. Knoell·D. -G. Welsch
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Abstract

A generalized Mach-Zehnder-type interferometer equipped with cross-Kerr elements is proposed to convert N-photon truncated single-mode quantum states into (N+1)-mode single-photon states, which are suitable for further state manipulation by means of beam splitter arrays and ON/OFF-detections, and vice versa. Applications to the realization of unitary and non-unitary transformations, quantum state reconstruction, and quantum telemanipulation are studied.

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J. Clausen, L. Knoell, D. -G. Welsch. 2001-11-27. Quantum state conversion by cross-Kerr interaction. https://doi.org/10.1088/1464-4266/4/2/312

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