Heralded Noiseless Amplification of a Photon Polarization Qubit
Sacha Kocsis, Guo‐Yong Xiang, Timothy C. Ralph, Geoff J. Pryde · 2013
We demonstrate heralded loss reduction of a qubit channel, using a two-mode coherent noiseless amplifier operating on the polarization of a single photon. We increase transmission fidelity by up to a factor of five.