Sensitivity of Measurement-Based Purification Processes to Inner Interactions
Quantum Physics
2018-07-24 v2
Abstract
The sensitivity of a repeated measurement-based purification scheme to additional undesired couplings is analyzed, focusing on the very simple and archetypical system consisting of two two-level systems interacting with a repeatedly measured one. Several regimes are considered and in the strong coupling (i.e., when the coupling constant of the undesired interaction is very large) the occurrence of a quantum Zeno effect is proven to dramatically jeopardize the efficiency of the purification process.
Cite
@article{arxiv.1706.09676,
title = {Sensitivity of Measurement-Based Purification Processes to Inner Interactions},
author = {B. Militello and A. Napoli},
journal= {arXiv preprint arXiv:1706.09676},
year = {2018}
}
Comments
12 pages, 6 figures