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Linear optics substituting scheme for multi-mode operations

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

We propose a scheme allowing a conditional implementation of suitably truncated general single- or multi-mode operators acting on states of traveling optical signal modes. The scheme solely relies on single-photon and coherent states and applies beam splitters and zero- and single-photon detections. The signal flow of the setup resembles that of a multi-mode quantum teleportation scheme thus allowing the individual signal modes to be spatially separated from each other. Some examples such as the realization of cross-Kerr nonlinearities, multi-mode mirrors, and the preparation of multi-photon entangled states are considered.

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J. Clausen, L. Knoell, D. -G. Welsch. 2003-03-02. Linear optics substituting scheme for multi-mode operations. https://doi.org/10.1103/physreva.68.043822

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