Suppressing the geometric dephasing of Berry phase by using modified dynamical decoupling sequences
Quantum Physics
2017-03-17 v1
Abstract
Even though the traditional dynamical decoupling methods have the ability to resist dynamic dephasing caused by low frequency noise, they are not appropriate for suppressing the residual geometric dephasing, which arises from the disturbance for the geometric loop in the parameter space. This prevents the precision of quantum manipulation based geometric quantum gates from being promoted further. In this paper, we design two kinds of modified dynamical decoupling schemes to suppress the residual geometric dephasing. The further numerical simulation demonstrates the validity of our schemes.
Cite
@article{arxiv.1703.05654,
title = {Suppressing the geometric dephasing of Berry phase by using modified dynamical decoupling sequences},
author = {Xiao-Ke Qin and Guang-Can Guo and Zheng-Wei Zhou},
journal= {arXiv preprint arXiv:1703.05654},
year = {2017}
}
Comments
8 pages, 6 figures