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Type: Journal article
Title: Negative refraction of excitations in the Bose-Hubbard model
Author: Henry, R.
Quach, J.
Su, C.-.H.
Greentree, A.
Martin, A.
Citation: Physical Review A, 2014; 90(4):043639-1-043639-5
Publisher: American Physical Society
Issue Date: 2014
ISSN: 1050-2947
Statement of
R. A. Henry, J. Q. Quach, C.-H. Su, A. D. Greentree, and A. M. Martin
Abstract: Ultracold 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.
Description: Published 31 October 2014
Rights: ©2014 American Physical Society
RMID: 0030098597
DOI: 10.1103/PhysRevA.90.043639
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Appears in Collections:Physics publications

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