Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 013611 |
| Fachzeitschrift | Physical Review A - Atomic, Molecular, and Optical Physics |
| Jahrgang | 80 |
| Ausgabenummer | 1 |
| Publikationsstatus | Veröffentlicht - 20 Juli 2009 |
Abstract
Strong one-dimensional (1D) lattices usually lead to unconnected two-dimensional gases. The long-range character of the dipole-dipole interactions leads to a scenario where nonoverlapping gases at different sites may interact significantly. We show that the excitations of nonoverlapping condensates in 1D optical lattices acquire a bandlike character, being collectively shared by different sites. In particular, the hybridization of the modes significantly enhances the rotonization of the excitations and may induce roton instability. We discuss the observability of this effect in ongoing experiments.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
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in: Physical Review A - Atomic, Molecular, and Optical Physics, Jahrgang 80, Nr. 1, 013611, 20.07.2009.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Hybrid multisite excitations in dipolar condensates in optical lattices
AU - Klawunn, M.
AU - Santos, Luis
PY - 2009/7/20
Y1 - 2009/7/20
N2 - Strong one-dimensional (1D) lattices usually lead to unconnected two-dimensional gases. The long-range character of the dipole-dipole interactions leads to a scenario where nonoverlapping gases at different sites may interact significantly. We show that the excitations of nonoverlapping condensates in 1D optical lattices acquire a bandlike character, being collectively shared by different sites. In particular, the hybridization of the modes significantly enhances the rotonization of the excitations and may induce roton instability. We discuss the observability of this effect in ongoing experiments.
AB - Strong one-dimensional (1D) lattices usually lead to unconnected two-dimensional gases. The long-range character of the dipole-dipole interactions leads to a scenario where nonoverlapping gases at different sites may interact significantly. We show that the excitations of nonoverlapping condensates in 1D optical lattices acquire a bandlike character, being collectively shared by different sites. In particular, the hybridization of the modes significantly enhances the rotonization of the excitations and may induce roton instability. We discuss the observability of this effect in ongoing experiments.
UR - http://www.scopus.com/inward/record.url?scp=69449101624&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.80.013611
DO - 10.1103/PhysRevA.80.013611
M3 - Article
AN - SCOPUS:69449101624
VL - 80
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 1
M1 - 013611
ER -