Quantum filtering one bit at a time
Quantum Physics
2012-01-05 v2
Abstract
In this paper we consider the purification of a quantum state using the information obtained from a continuous measurement record, where the classical measurement record is digitized to a single bit per measurement after the measurements have been made. Analysis indicates that efficient and reliable state purification is achievable for one- and two-qubit systems. We also consider quantum feedback control based on the discrete one-bit measurement sequences.
Cite
@article{arxiv.1108.0823,
title = {Quantum filtering one bit at a time},
author = {Jason F. Ralph and Neil P. Oxtoby},
journal= {arXiv preprint arXiv:1108.0823},
year = {2012}
}
Comments
5 pages, 3 figures