含线性缺陷的音速晶体中的空间绝热通过过程
Spatial adiabatic passage processes in sonic crystals with linear defects
摘要：
我们研究了声波在声波晶体中传播的空间绝热通道过程，该晶体由嵌入在水宿主介质中的钢圆柱体组成，具有两个线性缺陷。这项工作构成了著名的量子光学快速绝热通过技术的声音传播领域的扩展。提出了几种空间绝热通道装置，通过适当地设计沿传播方向的两个线性缺陷的几何形状，工作作为相干多频绝热分离器，相位差分析器和相干多频绝热耦合器。这些设备在几何参数值的波动面前是鲁棒的。
英文摘要：
We investigate spatial adiabatic passage processes for sound waves propagation in sonic crystals, consisting of steel cylinders embedded in a water host medium, that present two linear defects. This work constitutes an extension of the well-known quantum optical rapid adiabatic passage technique to the field of sound propagation. Several spatial adiabatic passage devices are proposed, by appropriately designing the geometry of the two linear defects along the propagation direction, to work as a coherent multifrequency adiabatic splitter, a phase difference analyzer and a coherent multifrequency adiabatic coupler. These devices are robust in front of fluctuations of the geometric parameter values.
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