Bragg spectroscopy of a strongly interacting Bose-Einstein condensate

被引：11
作者：
Kinnunen, J. J. [1 ]
Holland, M. J.
机构：
[1] Univ Colorado, JILA, Boulder, CO 80309 USA
来源：
NEW JOURNAL OF PHYSICS | 2009年 / 11卷
基金：
美国国家科学基金会;
关键词：
GROUND-STATE; SYSTEM; EXCITATION; SPECTRUM; GAS;
D O I：
10.1088/1367-2630/11/1/013030
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study Bragg spectroscopy of a strongly interacting Bose Einstein condensate using time-dependent Hartree-Fock-Bogoliubov theory. We include approximatively the effect of the momentum-dependent scattering amplitude which is shown to be the dominant factor in determining the spectrum for large momentum Bragg scattering. The condensation of the Bragg scattered atoms is shown to alter significantly the observed excitation spectrum by creating a novel pairing channel of mobile pairs.
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页数：12
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