Experimentally Feasible Quantum Erasure-Correcting Code for Continuous Variables
Julien Niset, Ulrik L. Andersen, Nicolas J. Cerf · Physical Review Letters · 2008
We devise a scheme that protects quantum coherent states of light from probabilistic losses, thus achieving the first continuous-variable quantum erasure-correcting code. If the occurrence of erasures can be probed, then the decoder enables, in principle, a perfect recovery of the original light states. Otherwise, if supplemented with postselection based on homodyne detection, this code can be turned into an efficient erasure-filtration scheme. The experimental feasibility of the proposed protocol is carefully addressed.