Publication:
Valley physics in non-Hermitian artificial acoustic boron nitride

dc.affiliation.dptoUC3M. Departamento de Físicaes
dc.affiliation.dptoUC3M. Departamento de Matemáticases
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Modelización, Simulación Numérica y Matemática Industriales
dc.contributor.authorWang, Mudi
dc.contributor.authorYe, Liping
dc.contributor.authorChristensen, Johan
dc.contributor.authorLiu, Zhengyou
dc.date.accessioned2018-09-17T11:50:46Z
dc.date.available2018-09-17T11:50:46Z
dc.date.issued2018-06-15
dc.description.abstractThe valley can serve as a new degree of freedom in the manipulation of particles or waves in condensed matter physics, whereas systems containing combinations of gain and loss elements constitute rich building units that can mimic non-Hermitian properties. By introducing gain and loss in artificial acoustic boron nitride, we show that the acoustic valley states and the valley-projected edge states display exotic behaviors in that they sustain either attenuated or amplified wave propagation. Our findings show how non-Hermiticity introduces a mechanism in tuning topological protected valley transports, which may have significance in advanced wave control for sensing and communication applications.en
dc.description.sponsorshipJ. C. acknowledges the support from the European Research Council (ERC) through the Starting Grant No. 714577 PHONOMETA and from the MINECO through a Ramón y Cajal grant (Grant No. RYC-2015-17156). This work was supported by the National Basic Research Program of China (Grant No. 2015CB755500); National Natural Science Foundation of China (Grants No. 11774275, No. 11674250, No. 11534013, and 11547310); Natural Science Foundation of Hubei Province (Grant No. 2017CFA042).en
dc.format.extent6es
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationPhysical review lettersen
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.120.246601
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.publicationfirstpage1es
dc.identifier.publicationissue24 (246601)es
dc.identifier.publicationlastpage6es
dc.identifier.publicationtitlePhysical review letters 120, 24 (246601)en
dc.identifier.publicationvolume120es
dc.identifier.urihttps://hdl.handle.net/10016/27424
dc.identifier.uxxiAR/0000021635
dc.language.isoengen
dc.publisherAmerican Physical Societyen
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/714577en
dc.relation.projectIDGobierno de España. RYC-2015-17156es
dc.rights© 2018 American Physical Societyen
dc.rights.accessRightsopen accessen
dc.subject.ecienciaFísicaes
dc.subject.ecienciaMaterialeses
dc.subject.otherAcoustic metamaterialsen
dc.subject.otherTopological insulatorsen
dc.titleValley physics in non-Hermitian artificial acoustic boron nitrideen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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