Heralded photon amplification for path entangled quantum communication
F. Monteiro (Université de Genève)
E. Verbanis (Université de Genève)
V. Caprara Vivoli (TU Delft - QuTech Advanced Research Centre, TU Delft - QID/Wehner Group)
A. Martin (Université de Genève)
N Gisin (Université de Genève)
H Zbinden (Université de Genève)
R. T. Thew (Université de Genève)
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Abstract
We experimentally studied heralded photon amplification for path entangled states and characterise entanglement before and after loss by exploiting displacement-based measurements. We demonstrate the recovery of high fidelity entangled states over lossequivalent distances > 50km.
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