具有自旋轨道相互作用的纳米线系统的压缩动力学

Squeezing dynamics of a nanowire system with spin-orbit interaction.

作者信息

Mohamed R I, Farouk Ahmed, Homid A H, El-Kalaawy O H, Abdel-Aty Abdel-Haleem, Abdel-Aty M, Ghose S

机构信息

Department of Mathematics and Computer Science, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt.

Department of Physics and Computer Science, Wilfrid Laurier University, Waterloo, Canada.

出版信息

Sci Rep. 2018 Jul 11;8(1):10484. doi: 10.1038/s41598-018-28607-3.

DOI:10.1038/s41598-018-28607-3

PMID:29992974

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6041277/

Abstract

We analyze the dynamics of squeezing in a ballistic quantum wire with Rashba spin-orbit interaction in the presence of both strong and weak magnetic fields and for different initial states of the system. Compared to the more standard measure of squeezing based on variances, we show that entropy squeezing is a more sensitive measure. Our results show that there is a strong relationship between the spin-orbit interaction and the strength of entropy squeezing. Furthermore, there is a relationship between the initial state and the number of squeezed components. This allows new knobs to control the strength and the component of entropy squeezing in a nanowire system.

摘要

我们分析了在存在强磁场和弱磁场的情况下，具有Rashba自旋轨道相互作用的弹道量子线中的压缩动力学，以及系统的不同初始状态。与基于方差的更标准的压缩测量相比，我们表明熵压缩是一种更敏感的测量方法。我们的结果表明，自旋轨道相互作用与熵压缩强度之间存在很强的关系。此外，初始状态与压缩分量的数量之间也存在关系。这为控制纳米线系统中熵压缩的强度和分量提供了新的手段。