Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 053613 |
| Fachzeitschrift | Physical Review A - Atomic, Molecular, and Optical Physics |
| Jahrgang | 75 |
| Ausgabenummer | 5 |
| Publikationsstatus | Veröffentlicht - 25 Mai 2007 |
Abstract
We analyze the Mott-insulator phases of dipolar bosonic gases placed in neighboring but unconnected one-dimensional (1D) traps. Whereas for short-range interactions the 1D systems are independent, the non-local dipole-dipole interaction induces a direct Mott-insulator to pair-superfluid transition which significantly modifies the boundaries of the lowest Mott-insulator phases. The lowest boundary of the lowest Mott regions becomes progressively constant as a function of the hopping rate, eventually inverting its slope, leading to a reentrant configuration which is retained in two dimensions. We discuss the consequences of this effect on the spatial Mott-insulator plateaux in experiments with additional harmonic confinement, showing that counterintuitively the plateaux may become wider for increasing hopping. Our results are also applicable to nondipolar boson-boson mixtures.
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 75, Nr. 5, 053613, 25.05.2007.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Mott-insulator phases of nonlocally coupled one-dimensional dipolar Bose gases
AU - Argüelles, A.
AU - Santos, Luis
PY - 2007/5/25
Y1 - 2007/5/25
N2 - We analyze the Mott-insulator phases of dipolar bosonic gases placed in neighboring but unconnected one-dimensional (1D) traps. Whereas for short-range interactions the 1D systems are independent, the non-local dipole-dipole interaction induces a direct Mott-insulator to pair-superfluid transition which significantly modifies the boundaries of the lowest Mott-insulator phases. The lowest boundary of the lowest Mott regions becomes progressively constant as a function of the hopping rate, eventually inverting its slope, leading to a reentrant configuration which is retained in two dimensions. We discuss the consequences of this effect on the spatial Mott-insulator plateaux in experiments with additional harmonic confinement, showing that counterintuitively the plateaux may become wider for increasing hopping. Our results are also applicable to nondipolar boson-boson mixtures.
AB - We analyze the Mott-insulator phases of dipolar bosonic gases placed in neighboring but unconnected one-dimensional (1D) traps. Whereas for short-range interactions the 1D systems are independent, the non-local dipole-dipole interaction induces a direct Mott-insulator to pair-superfluid transition which significantly modifies the boundaries of the lowest Mott-insulator phases. The lowest boundary of the lowest Mott regions becomes progressively constant as a function of the hopping rate, eventually inverting its slope, leading to a reentrant configuration which is retained in two dimensions. We discuss the consequences of this effect on the spatial Mott-insulator plateaux in experiments with additional harmonic confinement, showing that counterintuitively the plateaux may become wider for increasing hopping. Our results are also applicable to nondipolar boson-boson mixtures.
UR - http://www.scopus.com/inward/record.url?scp=34347351232&partnerID=8YFLogxK
UR - https://journals.aps.org/pra/abstract/10.1103/PhysRevA.77.059904
U2 - 10.1103/PhysRevA.75.053613
DO - 10.1103/PhysRevA.75.053613
M3 - Article
AN - SCOPUS:34347351232
VL - 75
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 5
M1 - 053613
ER -