Selective quantum evolution of a qubit state due to continuous measurement
Mesoscale and Nanoscale Physics
2009-10-31 v2 Quantum Physics
Abstract
We consider a two-level quantum system (qubit) which is continuously measured by a detector. The information provided by the detector is taken into account to describe the evolution during a particular realization of measurement process. We discuss the Bayesian formalism for such ``selective'' evolution of an individual qubit and apply it to several solid-state setups. In particular, we show how to suppress the qubit decoherence using continuous measurement and the feedback loop.
Cite
@article{arxiv.cond-mat/0008461,
title = {Selective quantum evolution of a qubit state due to continuous measurement},
author = {Alexander N. Korotkov},
journal= {arXiv preprint arXiv:cond-mat/0008461},
year = {2009}
}
Comments
15 pages (including 9 figures)