Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/79940
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dc.contributorDepartment of Mechanical Engineeringen_US
dc.creatorLiu, Ten_US
dc.creatorZhu, XFen_US
dc.creatorChen, Fen_US
dc.creatorLiang, SJen_US
dc.creatorZhu, Jen_US
dc.date.accessioned2018-12-21T07:13:58Z-
dc.date.available2018-12-21T07:13:58Z-
dc.identifier.issn0031-9007en_US
dc.identifier.urihttp://hdl.handle.net/10397/79940-
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.rights© 2018 American Physical Societyen_US
dc.rightsThe following publication Liu, T., Zhu, X., Chen, F., Liang, S., & Zhu, J. (2018). Unidirectional wave vector manipulation in two-dimensional space with an all passive acoustic parity-time-symmetric metamaterials crystal. Physical Review Letters, 120(12), 124502, 124502-1-124502-7 is available at https://doi.org/10.1103/PhysRevLett.120.124502.en_US
dc.titleUnidirectional wave vector manipulation in two-dimensional space with an all passive acoustic parity-time-symmetric metamaterials crystalen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage124502-1en_US
dc.identifier.epage124502-7en_US
dc.identifier.volume120en_US
dc.identifier.issue12en_US
dc.identifier.doi10.1103/PhysRevLett.120.124502en_US
dcterms.abstractExploring the concept of non-Hermitian Hamiltonians respecting parity-time symmetry with classical wave systems is of great interest as it enables the experimental investigation of parity-time-symmetric systems through the quantum-classical analogue. Here, we demonstrate unidirectional wave vector manipulation in two-dimensional space, with an all passive acoustic parity-time-symmetric metamaterials crystal. The metamaterials crystal is constructed through interleaving groove-and holey-structured acoustic metamaterials to provide an intrinsic parity-time-symmetric potential that is two-dimensionally extended and curved, which allows the flexible manipulation of unpaired wave vectors. At the transition point from the unbroken to broken parity-time symmetry phase, the unidirectional sound focusing effect (along with reflectionless acoustic transparency in the opposite direction) is experimentally realized over the spectrum. This demonstration confirms the capability of passive acoustic systems to carry the experimental studies on general parity-time symmetry physics and further reveals the unique functionalities enabled by the judiciously tailored unidirectional wave vectors in space.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationPhysical review letters, 23 Mar. 2018, v. 120, no. 12, 124502, 124502-1-124502-7en_US
dcterms.isPartOfPhysical review lettersen_US
dcterms.issued2018-03-23-
dc.identifier.isiWOS:000427804000006-
dc.identifier.scopus2-s2.0-85044425907-
dc.identifier.pmid29694065-
dc.identifier.eissn1079-7114en_US
dc.identifier.artn124502en_US
dc.identifier.rosgroupid2017000562-
dc.description.ros2017-2018 > Academic research: refereed > Publication in refereed journalen_US
dc.description.validate201812 bcrcen_US
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumbera0816-n02en_US
dc.identifier.SubFormID2022en_US
dc.description.fundingSourceRGCen_US
dc.description.fundingSourceOthersen_US
dc.description.fundingTextRGC: Grant No. 25208115en_US
dc.description.fundingTextOthers: National Natural Science Foundation of China (Grants No. 11690030, No. 11690032, and No. 11674119)en_US
dc.description.pubStatusPublisheden_US
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