Continuous quantum measurement in spin environments
Quantum Physics
2014-09-02 v1 Information Theory
math.IT
Abstract
We derive a formalism of stochastic master equations (SME) which describes the decoherence dynamics of a system in spin environments conditioned on the measurement record. Markovian and non-Markovian nature of environment can be revealed by a spectroscopy method based on weak quantum measurement (weak spectroscopy). On account of that correlated environments can lead to a nonlocal open system which exhibits strong non-Markovian effects although the local dynamics are Markovian, the spectroscopy method can be used to demonstrate that there is correlation between two environments.
Cite
@article{arxiv.1409.0191,
title = {Continuous quantum measurement in spin environments},
author = {Dong Xie and An Min Wang},
journal= {arXiv preprint arXiv:1409.0191},
year = {2014}
}
Comments
5pages,5 figures. arXiv admin note: text overlap with arXiv:1307.2101 by other authors