Linear quantum measurements
Mesoscale and Nanoscale Physics
2007-05-23 v1 Quantum Physics
Abstract
Linear response theory describes quantum measurement with an arbitrary detector weakly coupled to a measured system. This description produces generic quantitative relation characterizing the detector that is analogous to the fluctuation-dissipation theorem for equilibrium systems. The detector characteristic obtained in this way shows how efficient the trade-off is between the back-action dephasing and information acquisition by the detector.
Cite
@article{arxiv.cond-mat/0301524,
title = {Linear quantum measurements},
author = {D. V. Averin},
journal= {arXiv preprint arXiv:cond-mat/0301524},
year = {2007}
}
Comments
12 pages, 1 figure