An effective gauge potential for nonreciprocal acoustics

被引:11
作者
Dai, Dong-Dong [1 ]
Zhu, Xue-Feng [1 ]
机构
[1] Huazhong Univ Sci & Technol, Wuhan 430074, Peoples R China
关键词
PHASE-FACTORS;
D O I
10.1209/0295-5075/102/14001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
It is shown that by using temporal modulation of phase velocity inside active acoustic metamaterials, all effective gauge potential call be produced to allow nonreciprocal acoustic wave propagation. Such effective gauge potential gives rise to the counterintuitive unidirectional Doppler shift. The proposed scheme provides a new class of time-varying metamaterials for nonreciprocal acoustics, which opens more possibilities for the one acoustic devices. Copyright (C) EPLA, 2013
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页数:5
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