Rarified liquid properties of hybrid atomic-molecular Bose-Einstein condensates

被引:129
作者
Timmermans, E
Tommasini, P
Côté, R
Hussein, MS
Kerman, A
机构
[1] Harvard Smithsonian Ctr Astrophys, Inst Atom & Mol Phys, Cambridge, MA 02138 USA
[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[3] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
[4] MIT, Ctr Theoret Phys, Nucl Sci Lab, Cambridge, MA 02139 USA
[5] MIT, Dept Phys, Cambridge, MA 02139 USA
关键词
D O I
10.1103/PhysRevLett.83.2691
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In the atomic Bose-Einstein condensate, the interactions that bring a binary atom system to an intermediate state molecule in the Feshbach resonance create a second condensate component of molecules. The atomic and molecular condensates coherently exchange pairs of atoms. We discuss a signature of the coherent intercondensate exchange: Josephson-like oscillations of the atomic and molecular populations in response to a sudden change of the energy detuning. The dependence of the many-body ground state energy on volume suggests that the on-resonant ground state is a dilute condensate with the liquidlike property of a self-determined density.
引用
收藏
页码:2691 / 2694
页数:4
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