中文版 | English
Title

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

Author
Corresponding AuthorGao, Zhen; Sun, Hong-xiang; Yang, Yihao
Publication Years
2022-12-01
DOI
Source Title
ISSN
1367-2630
Volume24Issue:12
Abstract
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, we report the experimental observation of roton-like dispersions in acoustic metamaterials with beyond-nearest-neighbour interactions at ambient temperatures. The resulting metamaterial supports multiple coexisting modes with different wavevectors and group velocities at the same frequency and broadband backward waves, analogous to the 'return flow' termed by Feynman in the context of rotons. By increasing the order of long-range interaction, we observe multiple rotons on a single dispersion band, which have never appeared in Landau's prediction or any other condensed-matter or classical-wave studies. Moreover, we have also theoretically proposed and experimentally observed multidirectional roton-like dispersion relations in a two-dimensional nonlocal acoustic metamaterial. The realization of roton-like dispersions in metamaterials could pave the way to explore novel physics and applications on quantum-inspired phenomena in classical systems.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
National Natural Science Foundation of China["12104211","6101020101","12274183","12174159"] ; SUSTech Start-up Grant["Y01236148","Y01236248"] ; Key Research and Development Program of the Ministry of Science and Technology["2022YFA1404902","2022YFA1405201"] ; National Natural Science Foundation of China (NNSFC)[62175215] ; Fundamental Research Funds for the Central Universities[2021FZZX001-19] ; State Key Laboratory of Acoustics, Chinese Academy of Science[SKLA202216]
WOS Research Area
Physics
WOS Subject
Physics, Multidisciplinary
WOS Accession No
WOS:000898975500001
Publisher
ESI Research Field
PHYSICS
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:4
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/420775
DepartmentDepartment of Electrical and Electronic Engineering
Affiliation
1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
2.Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, 21 Nanyang Link, Singapore 637371, Singapore
3.Jiangsu Univ, Sch Phys & Elect Engn, Zhenjiang 212013, Peoples R China
4.Zhejiang Univ, Interdisciplinary Ctr Quantum Informat, ZJU Hangzhou Global Sci & Technol Innovat Ctr, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China
First Author AffilicationDepartment of Electrical and Electronic Engineering
Corresponding Author AffilicationDepartment of Electrical and Electronic Engineering
First Author's First AffilicationDepartment of Electrical and Electronic Engineering
Recommended Citation
GB/T 7714
Zhu, Zhenxiao,Gao, Zhen,Liu, Gui-Geng,et al. Observation of multiple rotons and multidirectional roton-like dispersion relations in acoustic metamaterials[J]. NEW JOURNAL OF PHYSICS,2022,24(12).
APA
Zhu, Zhenxiao.,Gao, Zhen.,Liu, Gui-Geng.,Ge, Yong.,Wang, Yin.,...&Yang, Yihao.(2022).Observation of multiple rotons and multidirectional roton-like dispersion relations in acoustic metamaterials.NEW JOURNAL OF PHYSICS,24(12).
MLA
Zhu, Zhenxiao,et al."Observation of multiple rotons and multidirectional roton-like dispersion relations in acoustic metamaterials".NEW JOURNAL OF PHYSICS 24.12(2022).
Files in This Item:
There are no files associated with this item.
Related Services
Fulltext link
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Export to Excel
Export to Csv
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[Zhu, Zhenxiao]'s Articles
[Gao, Zhen]'s Articles
[Liu, Gui-Geng]'s Articles
Baidu Scholar
Similar articles in Baidu Scholar
[Zhu, Zhenxiao]'s Articles
[Gao, Zhen]'s Articles
[Liu, Gui-Geng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhu, Zhenxiao]'s Articles
[Gao, Zhen]'s Articles
[Liu, Gui-Geng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.