Continuous weak measurement and feedback control of a solid-state charge qubit: physical unravelling of non-Lindblad master equation
Mesoscale and Nanoscale Physics
2015-06-25 v1
Abstract
Conventional quantum trajectory theory developed in quantum optics is largely based on the physical unravelling of Lindbald-type master equation, which constitutes the theoretical basis of continuous quantum measurement and feedback control. In this work, in the context of continuous quantum measurement and feedback control of a solid-state charge qubit, we present a physical unravelling scheme of non-Lindblad type master equation. Self-consistency and numerical efficiency are well demonstrated. In particular, the control effect is manifested in the detector noise spectrum, and the effect of measurement voltage is discussed.
Keywords
Cite
@article{arxiv.cond-mat/0611513,
title = {Continuous weak measurement and feedback control of a solid-state charge qubit: physical unravelling of non-Lindblad master equation},
author = {Shi-Kuan Wang and Jinshuang Jin and Xin-Qi Li},
journal= {arXiv preprint arXiv:cond-mat/0611513},
year = {2015}
}
Comments
8 pages, 5 figures