一维弹性系统对称性的建立与破坏
Building and Destroying Symmetry in 1-D Elastic Systems
摘要:
局部周期杆,这表明近似不变性相对于平移,通过加入$N$单位细胞。然后,光谱显示带谱。然后,我们通过在系统中包含一个或多个缺陷来打破局部周期性。当缺陷遵循一定的规则时,得到Wannier-Stark阶梯的模拟;当缺陷为随机时,得到表现出安德森局域化的弹性杆.在所有情况下,实验值都与理论预测相符。
英文摘要:
Locally periodic rods, which show approximate invariance with respect to translations, are constructed by joining $N$ unit cells. The spectrum then shows a band spectrum. We then break the local periodicity by including one or more defects in the system. When the defects follow a certain definite prescription, an analog of the Wannier-Stark ladders is gotten; when the defects are random, an elastic rod showing Anderson localization is obtained. In all cases experimental values match the theoretical predictions.
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。