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Hybrid Long-Distance Entanglement Distribution Protocol

Mon, 2011-02-14 16:55 - Q-Essence Coordinator
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Date: 
2010-10-11
Author(s): 

J. B. Brask, I. Rigas, E. S. Polzik, U. L. Andersen, and A. S. Sørensen

Reference: 

Phys. Rev. Lett. 105, 160501 (2010)

URL: 

http://link.aps.org/doi/10.1103/PhysRevLett.105.160501

We propose a hybrid (continuous-discrete variable) quantum repeater protocol for long-distance entanglement distribution. Starting from states created by single-photon detection, we show how entangled coherent state superpositions can be generated by means of homodyne detection. We show that near-deterministic entanglement swapping with such states is possible using only linear optics and homodyne detectors, and we evaluate the performance of our protocol combining these elements.