Resonant demagnetization of a dipolar Bose-Einstein condensate in a three-dimensional optical lattice

被引：25
|
作者：
de Paz, A. [1 ,2 ]
Chotia, A. [1 ,2 ]
Marechal, E. [1 ,2 ]
Pedri, P. [1 ,2 ]
Vernac, L. [1 ,2 ]
Gorceix, O. [1 ,2 ]
Laburthe-Tolra, B. [1 ,2 ]
机构：
[1] Univ Paris 13, Phys Lasers Lab, F-93430 Villetaneuse, France
[2] CNRS, LPL, UMR 7538, F-93430 Villetaneuse, France
来源：
PHYSICAL REVIEW A | 2013年 / 87卷 / 05期
关键词：
ATOMS;
D O I：
10.1103/PhysRevA.87.051609
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study dipolar relaxation of a chromium Bose-Einstein condensate loaded into a three-dimensional (3D) optical lattice. We observe dipolar relaxation resonances when the magnetic energy released during the inelastic collision matches an excitation towards higher-energy bands. Spectroscopy of these resonances for two orientations of the magnetic field provides a 3D band spectroscopy of the lattice. The narrowest resonance is registered for the lowest excitation energy. Its line shape is sensitive to the on-site interaction energy. We use such sensitivity to probe number squeezing in a Mott insulator.
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页数：5
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