非互惠的声学设备与不对称的皮尔斯相
Li Zhang1,2,3, Yong Ge4, Yi-Jun Guan4
1Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, <a href="https://ror.org/00a2xv884">Zhejiang University</a>, Hangzhou 310027, China.
Physical review letters
|October 11, 2024
概括
研究人员开发了一种用于声学设备的新框架,使用可控制的不对称的皮尔斯相. 这使得像隔离器和循环器这样的紧,高性能非互惠的声学设备可以在没有先前限制的情况下使用.
科学领域:
- 声学 声学 在声学上
- 凝聚物质物理学 凝聚物质物理学
- 量子力学就是量子力学.
背景情况:
- 声学中的非互惠性对于应用至关重要,但现有的方法 (非线性介质,移动流体,时间调制) 有诸如大尺寸,高功耗和集成困难等缺点.
- 对于声学非互惠的传统方法通常依赖于非隐性或时间逆转对称性破坏,限制了设备的设计和性能.
研究的目的:
- 提出一种新的框架,用于设计使用可控制的不对称皮尔尔斯相的非互惠声学装置.
- 为了证明创建紧,可集成和高性能非互惠的声学设备的可行性.
主要方法:
- 使用非对称的皮尔尔斯相,通过活性声学元件控制,在哈密尔顿理论框架内.
- 开发声学隔离器,旋转器和循环器的非赫密斯式扩展.
- 分析传输阶段,皮尔尔阶段和尺度不变的阿哈罗诺夫-博姆阶段之间的关系.
主要成果:
- 介绍了一种基于完全可控制的皮尔尔斯相设计非互惠声学装置的一般方法.
- 实现了高性能声学隔离器,旋转器和循环器,克服了隐性和被动性的局限性.
- 隔离器中的传输相的物理,旋转器中的相延迟和循环器中的传输行为是通过皮尔尔斯和阿哈罗诺夫-博姆相来解释的.
结论:
- 拟议的框架为设计紧且可集成的非互惠声学设备提供了一种多功能方法.
- 这项研究揭示了与音响系统中的皮尔尔阶段相关的基本物理.
- 这项工作为先前无法实现的先进声学功能铺平了道路.
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