点击次数：

论文类型： 期刊论文

发表时间： 2016-10-01

发表刊物： ANNALS OF PHYSICS

收录刊物： SCIE、Scopus

卷号： 373

页面范围： 286-297

ISSN号： 0003-4916

关键字： Edge states; Lyapunov control

摘要： Preparing topological states of quantum matter, such as edge states, is one of the most important directions in condensed matter physics. In this work, we present a proposal to prepare edge states in Aubry-Andre-Harper (AAH) model with open boundaries, which takes advantage of Lyapunov control to design operations. We show that edge states can be obtained with almost arbitrary initial states. A numerical optimalization for the control is performed and the dependence of control process on the system size is discussed. The merit of this proposal is that the shaking exerts only on the boundaries of the model. As a by-product, a topological entangled state is achieved by elaborately designing the shaking scheme. (C) 2016 Elsevier Inc. All rights reserved.