A practical scheme for error control using feedback
Quantum Physics
2009-11-10 v2
Abstract
We describe a scheme for quantum error correction that employs feedback and weak measurement rather than the standard tools of projective measurement and fast controlled unitary gates. The advantage of this scheme over previous protocols (for example Ahn et. al, PRA, 65, 042301 (2001)), is that it requires little side processing while remaining robust to measurement inefficiency, and is therefore considerably more practical. We evaluate the performance of our scheme by simulating the correction of bit-flips. We also consider implementation in a solid-state quantum computation architecture and estimate the maximal error rate which could be corrected with current technology.
Cite
@article{arxiv.quant-ph/0402017,
title = {A practical scheme for error control using feedback},
author = {Mohan Sarovar and Charlene Ahn and Kurt Jacobs and Gerard J. Milburn},
journal= {arXiv preprint arXiv:quant-ph/0402017},
year = {2009}
}
Comments
12 pages, 3 figures. Minor typographic changes