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Article: Spontaneous Exciton Valley Coherence in Transition Metal Dichalcogenide Monolayers Interfaced with an Anisotropic Metasurface

TitleSpontaneous Exciton Valley Coherence in Transition Metal Dichalcogenide Monolayers Interfaced with an Anisotropic Metasurface
Authors
Issue Date2018
PublisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
Citation
Physical Review Letters, 2018, v. 121 n. 11, article no. 116102 How to Cite?
AbstractThe control of the exciton intervalley coherence renders transition metal dichalcogenides monolayers promising candidates for quantum information science. So far, generating intervalley coherence has the need for an external coherent field. Here, we theoretically demonstrate spontaneous generation (i.e., without any external field) of exciton intervalley coherence. We achieve this by manipulating the vacuum field in the vicinity of the monolayer with a designed polarization-dependent metasurface, inducing an anisotropic decay rate for in-plane excitonic dipoles. Harnessing quantum coherence and interference effects in two-dimensional materials may provide the route for novel quantum valleytronic devices.
Persistent Identifierhttp://hdl.handle.net/10722/262556
ISSN
2019 Impact Factor: 8.385
2015 SCImago Journal Rankings: 3.731

 

DC FieldValueLanguage
dc.contributor.authorJha, PK-
dc.contributor.authorShitrit, N-
dc.contributor.authorRen, X-
dc.contributor.authorWang, Y-
dc.contributor.authorZhang, X-
dc.date.accessioned2018-10-02T03:46:32Z-
dc.date.available2018-10-02T03:46:32Z-
dc.date.issued2018-
dc.identifier.citationPhysical Review Letters, 2018, v. 121 n. 11, article no. 116102-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/262556-
dc.description.abstractThe control of the exciton intervalley coherence renders transition metal dichalcogenides monolayers promising candidates for quantum information science. So far, generating intervalley coherence has the need for an external coherent field. Here, we theoretically demonstrate spontaneous generation (i.e., without any external field) of exciton intervalley coherence. We achieve this by manipulating the vacuum field in the vicinity of the monolayer with a designed polarization-dependent metasurface, inducing an anisotropic decay rate for in-plane excitonic dipoles. Harnessing quantum coherence and interference effects in two-dimensional materials may provide the route for novel quantum valleytronic devices.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org-
dc.relation.ispartofPhysical Review Letters-
dc.titleSpontaneous Exciton Valley Coherence in Transition Metal Dichalcogenide Monolayers Interfaced with an Anisotropic Metasurface-
dc.typeArticle-
dc.identifier.emailZhang, X: president@hku.hk-
dc.identifier.authorityZhang, X=rp02411-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevLett.121.116102-
dc.identifier.pmid30265090-
dc.identifier.volume121-
dc.identifier.issue11-
dc.identifier.spagearticle no. 116102-
dc.identifier.epagearticle no. 116102-
dc.publisher.placeUnited States-

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