A simple model of quantum trajectories
量子物理
2009-11-07 v1
摘要
Quantum trajectory theory, developed largely in the quantum optics community to describe open quantum systems subjected to continuous monitoring, has applications in many areas of quantum physics. In this paper I present a simple model, using two-level quantum systems (q-bits), to illustrate the essential physics of quantum trajectories and how different monitoring schemes correspond to different ``unravelings'' of a mixed state master equation. I also comment briefly on the relationship of the theory to the Consistent Histories formalism and to spontaneous collapse models.
引用
@article{arxiv.quant-ph/0108132,
title = {A simple model of quantum trajectories},
author = {Todd A. Brun},
journal= {arXiv preprint arXiv:quant-ph/0108132},
year = {2009}
}
备注
42 pages RevTeX including four figures in encapsulated postscript. Submitted to special issue of American Journal of Physics