Adelaide Research & Scholarship
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https://hdl.handle.net/2440/115110
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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: Atomic, Molecular and Optical Physics, 2014; 90(4):043639-1-043639-5 |
| Publisher: | American Physical Society |
| Issue Date: | 2014 |
| ISSN: | 1050-2947 1094-1622 |
| Statement of Responsibility: | 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 |
| DOI: | 10.1103/PhysRevA.90.043639 |
| Grant ID: | http://purl.org/au-research/grants/arc/DP130104381 |
| Published version: | http://dx.doi.org/10.1103/physreva.90.043639 |
| Appears in Collections: | Aurora harvest 3 Physics publications |
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