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arXiv · 1208.3556

Linear-optical programmable quantum router

Karel Lemr·Antonín Černoch
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Abstract

This paper presents a scheme for linear-optical implementation of a programmable quantum router. Polarization encoded photon qubit is coherently routed to various spatial modes according to the state of several control qubits. In our implementation, the polarization state of the signal photon does not change under the routing operation. We also discuss generalization of the scheme that would allow to obtain signal dependent routing.

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Karel Lemr, Antonín Černoch. 2012-08-17. Linear-optical programmable quantum router. https://doi.org/10.1016/j.optcom.2013.02.052

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