تقرير
Negative Refraction of Excitations in the Bose-Hubbard Model
| العنوان: | Negative Refraction of Excitations in the Bose-Hubbard Model |
|---|---|
| المؤلفون: | Henry, R. A., Quach, J. Q., Su, C-H., Greentree, A. D., Martin, A. M. |
| سنة النشر: | 2014 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Quantum Gases, Quantum Physics |
| الوصف: | 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 onsite interaction it is possible to manipulate the motion of excitations above the Mott 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. Comment: 6 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevA.90.043639 |
| URL الوصول: | http://arxiv.org/abs/1407.4882 |
| رقم الأكسشن: | edsarx.1407.4882 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevA.90.043639 |
|---|