State Measurements with Short Laser Pulses and Lower-Efficiency Photon Detectors
atom-ph
2015-06-24 v1 Atomic Physics
Quantum Physics
Abstract
It has been proposed by Cook (Phys. Scr. T 21, 49 (1988)) to use a short probe laser pulse for state measurements of two-level systems. In previous work we have investigated to what extent this proposal fulfills the projection postulate if ideal photon detectors are considered. For detectors with overall efficiency less than 1 complications arise for single systems, and for this case we present a simple criterion for a laser pulse to act as a state measurement and to cause an almost complete state reduction.
Keywords
Cite
@article{arxiv.atom-ph/9607001,
title = {State Measurements with Short Laser Pulses and Lower-Efficiency Photon Detectors},
author = {Almut Beige and Gerhard C. Hegerfeldt},
journal= {arXiv preprint arXiv:atom-ph/9607001},
year = {2015}
}
Comments
13 pages, LaTeX; submitted to J. mod. Opt