Details
| Original language | English |
|---|---|
| Article number | 033626 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 81 |
| Issue number | 3 |
| Publication status | Published - 29 Mar 2010 |
Abstract
We analyze the physics of Faraday patterns in dipolar Bose-Einstein condensates. Faraday patterns can be induced in Bose-Einstein condensates by a periodic modulation of the system nonlinearity. We show that these patterns are remarkably different in dipolar gases with a roton-maxon excitation spectrum. Whereas for nondipolar gases the pattern size decreases monotonously with the driving frequency, patterns in dipolar gases present, even for shallow roton minima, a highly nontrivial frequency dependence characterized by abrupt pattern size transitions, which are especially pronounced when the dipolar interaction is modulated. Faraday patterns constitute, hence, an excellent tool for revealing the onset of the roton minimum, a key feature of dipolar gases.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 81, No. 3, 033626, 29.03.2010.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Faraday patterns in two-dimensional dipolar Bose-Einstein condensates
AU - Nath, Rejish
AU - Santos, Luis
PY - 2010/3/29
Y1 - 2010/3/29
N2 - We analyze the physics of Faraday patterns in dipolar Bose-Einstein condensates. Faraday patterns can be induced in Bose-Einstein condensates by a periodic modulation of the system nonlinearity. We show that these patterns are remarkably different in dipolar gases with a roton-maxon excitation spectrum. Whereas for nondipolar gases the pattern size decreases monotonously with the driving frequency, patterns in dipolar gases present, even for shallow roton minima, a highly nontrivial frequency dependence characterized by abrupt pattern size transitions, which are especially pronounced when the dipolar interaction is modulated. Faraday patterns constitute, hence, an excellent tool for revealing the onset of the roton minimum, a key feature of dipolar gases.
AB - We analyze the physics of Faraday patterns in dipolar Bose-Einstein condensates. Faraday patterns can be induced in Bose-Einstein condensates by a periodic modulation of the system nonlinearity. We show that these patterns are remarkably different in dipolar gases with a roton-maxon excitation spectrum. Whereas for nondipolar gases the pattern size decreases monotonously with the driving frequency, patterns in dipolar gases present, even for shallow roton minima, a highly nontrivial frequency dependence characterized by abrupt pattern size transitions, which are especially pronounced when the dipolar interaction is modulated. Faraday patterns constitute, hence, an excellent tool for revealing the onset of the roton minimum, a key feature of dipolar gases.
UR - http://www.scopus.com/inward/record.url?scp=77950241679&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.81.033626
DO - 10.1103/PhysRevA.81.033626
M3 - Article
AN - SCOPUS:77950241679
VL - 81
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 3
M1 - 033626
ER -