Negative refraction of excitations in the Bose-Hubbard model

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dc.contributor.authorHenry, R.
dc.contributor.authorQuach, J.
dc.contributor.authorSu, C.-H.
dc.contributor.authorGreentree, A.
dc.contributor.authorMartin, A.
dc.date.issued2014
dc.descriptionPublished 31 October 2014
dc.description.abstractUltracold atoms in optical lattices provide a unique opportunity to study Bose-Hubbard physics. In this work we show that by considering a spatially varying on-site interaction it is possible to manipulate the motion of excitations above theMott phase in a Bose-Hubbard system. Specifically, we show that it is possible to “engineer” regimes where excitations will negatively refract, facilitating the construction of a flat lens.
dc.description.statementofresponsibilityR. A. Henry, J. Q. Quach, C.-H. Su, A. D. Greentree, and A. M. Martin
dc.identifier.citationPhysical Review A: Atomic, Molecular and Optical Physics, 2014; 90(4):043639-1-043639-5
dc.identifier.doi10.1103/PhysRevA.90.043639
dc.identifier.issn1050-2947
dc.identifier.issn1094-1622
dc.identifier.orcidQuach, J. [0000-0002-3619-2505]
dc.identifier.urihttp://hdl.handle.net/2440/115110
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.granthttp://purl.org/au-research/grants/arc/DP130104381
dc.rights©2014 American Physical Society
dc.source.urihttps://doi.org/10.1103/physreva.90.043639
dc.titleNegative refraction of excitations in the Bose-Hubbard model
dc.typeJournal article
pubs.publication-statusPublished

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