Optical implementation of a unitarily correctable code
Abstract
Noise poses a challenge for any real-world implementation in quantum information science. The theory of quantum error correction deals with this problem via methods to encode and recover quantum information in a way that is resilient against that noise. Unitarily correctable codes are an error correction technique wherein a single unitary recovery operation is applied without the need for an ancilla Hilbert space. Here, we present the first optical implementation of a non-trivial unitarily correctable code for a noisy quantum channel with no decoherence-free subspaces or noiseless subsystems. We show that recovery of our initial states is achieved with high fidelity (>=0.97), quantitatively proving the efficacy of this unitarily correctable code.
Cite
@article{arxiv.0909.1584,
title = {Optical implementation of a unitarily correctable code},
author = {Kurt M. Schreiter and Aron Pasieka and Rainer Kaltenbaek and Kevin J. Resch and David W. Kribs},
journal= {arXiv preprint arXiv:0909.1584},
year = {2009}
}
Comments
6 pages, 3 figures