Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 025603 |
| Fachzeitschrift | Physical Review A - Atomic, Molecular, and Optical Physics |
| Jahrgang | 88 |
| Ausgabenummer | 2 |
| Publikationsstatus | Veröffentlicht - 30 Aug. 2013 |
Abstract
Dipolar Bose-Einstein condensates may present a rotonlike dispersion minimum, which has yet to be observed in experiments. We discuss a simple method to reveal roton excitations based on the response of quasi-two-dimensional dipolar condensates against a weak lattice potential. By employing numerical simulations for realistic scenarios, we analyze the response of the system as a function of both the lattice spacing and the s-wave scattering length, showing that the roton minimum may be readily revealed in current experiments by the resonant population of Bragg peaks in time-of-flight measurements.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
in: Physical Review A - Atomic, Molecular, and Optical Physics, Jahrgang 88, Nr. 2, 025603, 30.08.2013.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Time-of-flight roton spectroscopy in dipolar Bose-Einstein condensates
AU - Jona-Lasinio, Mattia
AU - Łakomy, Kazimierz
AU - Santos, Luis
PY - 2013/8/30
Y1 - 2013/8/30
N2 - Dipolar Bose-Einstein condensates may present a rotonlike dispersion minimum, which has yet to be observed in experiments. We discuss a simple method to reveal roton excitations based on the response of quasi-two-dimensional dipolar condensates against a weak lattice potential. By employing numerical simulations for realistic scenarios, we analyze the response of the system as a function of both the lattice spacing and the s-wave scattering length, showing that the roton minimum may be readily revealed in current experiments by the resonant population of Bragg peaks in time-of-flight measurements.
AB - Dipolar Bose-Einstein condensates may present a rotonlike dispersion minimum, which has yet to be observed in experiments. We discuss a simple method to reveal roton excitations based on the response of quasi-two-dimensional dipolar condensates against a weak lattice potential. By employing numerical simulations for realistic scenarios, we analyze the response of the system as a function of both the lattice spacing and the s-wave scattering length, showing that the roton minimum may be readily revealed in current experiments by the resonant population of Bragg peaks in time-of-flight measurements.
UR - http://www.scopus.com/inward/record.url?scp=84884855885&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.88.025603
DO - 10.1103/PhysRevA.88.025603
M3 - Article
AN - SCOPUS:84884855885
VL - 88
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 2
M1 - 025603
ER -