Sensitivity optimization in quantum parameter estimation
Quantum Physics
2009-11-07 v1
Abstract
We present a general framework for sensitivity optimization in quantum parameter estimation schemes based on continuous (indirect) observation of a dynamical system. As an illustrative example, we analyze the canonical scenario of monitoring the position of a free mass or harmonic oscillator to detect weak classical forces. We show that our framework allows the consideration of sensitivity scheduling as well as estimation strategies for non-stationary signals, leading us to propose corresponding generalizations of the Standard Quantum Limit for force detection.
Cite
@article{arxiv.quant-ph/0104116,
title = {Sensitivity optimization in quantum parameter estimation},
author = {F. Verstraete and A. C. Doherty and H. Mabuchi},
journal= {arXiv preprint arXiv:quant-ph/0104116},
year = {2009}
}
Comments
15 pages, RevTeX