Entanglement-assisted quantum error correction with linear optics
Mark M. Wilde, Hari Krovi, Todd A. Brun · Physical Review A · 2007
We construct a theory of continuous-variable entanglement-assisted quantum error correction. We present an example of a continuous-variable entanglement-assisted code that corrects for an arbitrary single-mode error. We also show how to implement encoding circuits using passive optical devices, homodyne measurements, feedforward classical communication, conditional displacements, and off-line squeezers.