Observation of phase separation in a strongly interacting imbalanced fermi gas.
Observation of phase separation in a strongly interacting imbalanced fermi gas.
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DOI：
10.1103/physrevlett.97.030401
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发表时间：
2006-06
影响因子：
8.6
通讯作者：
A. Schirotzek;Y. Shin;M. Zwierlein;C. Schunck;W. Ketterle
中科院分区：
文献类型：
--
作者：
A. Schirotzek;Y. Shin;M. Zwierlein;C. Schunck;W. Ketterle
我们在自旋布居不平衡的强相互作用费米气体中观察到了超流和正常组分之间的相分离。利用相衬成像和三维图像重建，获得了两个被俘获自旋分量之间的密度差的原位分布。一个壳结构被清楚地确定在超流区域的密度相等的是由一个正常的气体密度不等。当多余的费米子从超流体中被排出时，相变引起了密度分布的急剧变化。
We have observed phase separation between the superfluid and the normal component in a strongly interacting Fermi gas with imbalanced spin populations. The in situ distribution of the density difference between two trapped spin components is obtained using phase-contrast imaging and 3D image reconstruction. A shell structure is clearly identified where the superfluid region of equal densities is surrounded by a normal gas of unequal densities. The phase transition induces a dramatic change in the density profiles as excess fermions are expelled from the superfluid.