Deterministic creation and stabilization of entanglement in circuit QED by homodyne-mediated feedback control
Quantum Physics
2011-09-30 v1
Abstract
In the solid-state circuit QED system and based on the homodyne measurement in dispersive regime, we demonstrate that a homodyne-current-based feedback can create and stabilize highly entangled two-qubit states in the presence of moderate noisy environment. Particularly, we present an extended analysis for the current-based Markovian feedback, which leads to an improved filtered-current-based feedback scheme. We show that this is essential for us to achieve the desirable control effect in present system.
Keywords
Cite
@article{arxiv.1005.2810,
title = {Deterministic creation and stabilization of entanglement in circuit QED by homodyne-mediated feedback control},
author = {Zhuo Liu and Lulin Kuang and Kai Hu and Luting Xu and Suhua Wei and Lingzhen Guo and Xin-Qi Li},
journal= {arXiv preprint arXiv:1005.2810},
year = {2011}
}
Comments
6 pages, 4 figures