Efficient Distillation of Indistinguishable Photons

We introduce state-of-the-art protocols to distill indistinguishable photons, reducing error rates by a factor of n , using only O ( n ) photons. We discuss the protocols, resource requirements, and applications to fault-tolerant quantum computation. The United States Government retains, and by accepting the article for publication, the publisher acknowledges that the United States Government retains, a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for United States Government purposes.