2010/04/06 by Jonatan B. Brask, Ioannes Rigas, Eugene S. Polzik +2
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physrevlett.105.160501
published as Phys. Rev. Lett. 105, 160501 (2010) · 4 pages, 3 figures
arxiv created 2010/04/06 · arxiv updated 2015/03/13
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.