Observation of Quantum Droplets in a Strongly Dipolar Bose Gas

被引：517
作者：
Ferrier-Barbut, Igor [1 ]
Kadau, Holger
Schmitt, Matthias
Wenzel, Matthias
Pfau, Tilman
机构：
[1] Univ Stuttgart, Phys Inst 5, Pfaffenwaldring 57, D-70550 Stuttgart, Germany
来源：
PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 21期
关键词：
FERROFLUID; PHYSICS;
D O I：
10.1103/PhysRevLett.116.215301
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Quantum fluctuations are the origin of genuine quantum many-body effects, and can be neglected in classical mean-field phenomena. Here, we report on the observation of stable quantum droplets containing similar to 800 atoms that are expected to collapse at the mean-field level due to the essentially attractive interaction. By systematic measurements on individual droplets we demonstrate quantitatively that quantum fluctuations mechanically stabilize them against the mean-field collapse. We observe in addition the interference of several droplets indicating that this stable many-body state is phase coherent.
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页数：6
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