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arXiv · 1004.0083

A Hybrid Long-Distance Entanglement Distribution Protocol

Jonatan B. Brask·Ioannes Rigas·Eugene S. Polzik·Ulrik L. Andersen·Anders S. Sorensen
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Abstract

We propose a hybrid (continuous-discrete variable) quantum repeater protocol for distribution of entanglement over long distances. Starting from entangled states created by means of single-photon detection, we show how entangled coherent state superpositions, also known as `Schrödinger cat states', can be generated by means of homodyne detection of light. 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.

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Jonatan B. Brask, Ioannes Rigas, Eugene S. Polzik, Ulrik L. Andersen, Anders S. Sorensen. 2010-04-06. A Hybrid Long-Distance Entanglement Distribution Protocol. https://doi.org/10.1103/physrevlett.105.160501

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