Correlation functions and conditioned quantum dynamics in photodetection theory
Quantum Physics
2015-12-09 v1
Abstract
Correlations in photodetection signals from quantum light sources are conventionally calculated by application of the source master equation and the quantum regression theorem. In this article we show how the conditioned dynamics, associated with the quantum theory of measurements, allows calculations and offers interpretations of the behaviour of the same quantities. Our theory is illustrated for photon counting and field-amplitude measurements, and we show, in particular, how transient correlations between field-amplitude measurements and later photon counting events can be accounted for by a recently developed theory of past quantum states of a monitored quantum system.
Cite
@article{arxiv.1506.08654,
title = {Correlation functions and conditioned quantum dynamics in photodetection theory},
author = {Qing Xu and Eliska Greplova and Brian Julsgaard and Klaus Mølmer},
journal= {arXiv preprint arXiv:1506.08654},
year = {2015}
}
Comments
15 pages, 5 illustrations