椭圆函数与不等耦合伊辛自旋链的高效控制
量子物理
2009-11-13 v1
摘要
在本文中,我们研究了由三个弱耦合且耦合强度不等的自旋 1/2 组成的线性链中的动力学最优控制问题。我们解决了多重自旋量子相干性的时间最优合成问题。通过计算特殊度量下球面上的测地线,我们推导出了创建所需自旋序的时间最优脉冲序列。测地线方程的解与非线性振荡器方程相关,且创建多重自旋序的最短时间可以用椭圆积分表示。这些技术被用于在具有不等耦合的伊辛自旋链中高效地创建多重自旋相干性。
关键词
引用
@article{arxiv.0710.0075,
title = {Elliptic functions and efficient control of Ising spin chains with unequal couplings},
author = {H. Yuan and R. Zeier and N. Khaneja},
journal= {arXiv preprint arXiv:0710.0075},
year = {2009}
}
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