Observation of multiple rotons and multidirectional roton-like dispersion relations in acoustic metamaterials

Observation of multiple rotons and multidirectional roton-like dispersion relations in acoustic metamaterials

Roton dispersion relations were firstly predicted by Landau and have been extensively explored in correlated quantum systems at low temperatures. Recently, the roton-like dispersion relations were theoretically extended to classical acoustics, which, however, have remained elusive in reality. Here,...

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Bibliographic Details
Main Authors: Zhenxiao Zhu, Zhen Gao, Gui-Geng Liu, Yong Ge, Yin Wang, Xiang Xi, Bei Yan, Fujia Chen, Perry Ping Shum, Hong-xiang Sun, Yihao Yang
Format: Article
Language:English
Published: IOP Publishing 2022-01-01
Series:New Journal of Physics
Subjects:
long-range interaction
roton-like dispersion
multiple rotons
multidirectional roton-like dispersion
nonlocal acoustic metamaterials
Online Access:https://doi.org/10.1088/1367-2630/aca786

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