arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1104.0105quant-ph
收藏

量子漫步中的Zitterbewegung、Bloch振荡和Landau-Zener隧穿

Zitterbewegung, Bloch Oscillations and Landau-Zener Tunneling in a Quantum Walk

Alois Regensburger, Christoph Bersch, Benjamin Hinrichs, Georgy Onishchukov, Andreas Schreiber, Christine Silberhorn, Ulf Peschel

摘要:

我们实验研究了耦合光纤环系统中的离散时间量子行走,并观察了周期性结构中波传播的典型现象,如弹道扩散或类似于Zitterbewegung(颤抖运动)的两个内部量子态之间的振荡。如果施加位置相关的相位梯度,我们发现本地化和布洛赫振荡的领域,以及强相位梯度的朗道-齐纳隧道。

英文摘要:

We experimentally investigate a discrete time quantum walk in a system of coupled fiber loops and observe typical phenomena known from the wave propagation in periodic structures as ballistic spreading or an oscillation between two internal quantum states similar to Zitterbewegung (trembling motion). If a position-dependent phase gradient is applied we find localization and Bloch oscillations of the field for moderate as well as Landau-Zener tunneling for strong phase gradients.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑