Hybrid Long-Distance Entanglement Distribution Protocol
Jonatan Bohr Brask, Ioannes Rigas, Eugene Simon Polzik, Ulrik L. Andersen, Anders Søndberg Sørensen · Physical Review Letters · 2010
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.