Dynamical Spin Squeezing via Higher Order Trotter-Suzuki Approximation
Quantum Physics
2014-07-17 v2
Abstract
Here we provide a scheme of transforming the one-axis twisting Hamiltonian into the two-axis twisting one based on high order Trotter-Suzuki Approximation. Compared with the paper [Y. C. Liu et al., Phys. Rev. Lett. 107, 013601 (2011)], our method can reduce the number of controlling cycles from to . Moreover, it is also spin number independent and takes shorter optimal evolution time contrast with the method in the work [C. Shen et al., Phys. Rev. A 87, 051801 (2013)]. The corresponding error analysis is also provided.
Keywords
Cite
@article{arxiv.1406.3887,
title = {Dynamical Spin Squeezing via Higher Order Trotter-Suzuki Approximation},
author = {Ji-Ying Zhang and Xiang-Fa Zhou and Guang-Can Guo and Zheng-Wei Zhou},
journal= {arXiv preprint arXiv:1406.3887},
year = {2014}
}
Comments
6 pages, 7 figures