PHYSICS:
Jump-Starting Quantum Error Correction with Entanglement
Daniel Gottesman
When quantum signals are sent through communication systems, they get degraded. The resulting errors can be corrected with less computational effort by taking advantage of certain quantum-mechanical effects.
The author is at the Perimeter Institute, Waterloo, Ontario N2L 2Y5, Canada. E-mail: dgottesman{at}perimeterinstitute.ca