Observation of Fermi Pressure in a Gas of Trapped Atoms
Observation of Fermi Pressure in a Gas of Trapped Atoms
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DOI：
10.1126/science.1059318
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发表时间：
2001-03
期刊：
影响因子：
56.9
通讯作者：
A. Truscott;K. Strecker;W. McAlexander;G. Partridge;R. Hulet
中科院分区：
文献类型：
--
作者：
A. Truscott;K. Strecker;W. McAlexander;G. Partridge;R. Hulet
我们报道了玻色子（锂-7）和费米子（锂-6）混合气体中同时量子简并的实现。通过与蒸发冷却玻色子的热碰撞，费米气体被冷却到费米温度的0.25倍。在此温度下，气体的空间大小受到由泡利不相容原理产生的费米压力的强烈影响，并为量子简并提供了明确的实验证据。
We report the attainment of simultaneous quantum degeneracy in a mixed gas of bosons (lithium-7) and fermions (lithium-6). The Fermi gas has been cooled to a temperature of 0.25 times the Fermi temperature by thermal collisions with the evaporatively cooled bosons. At this temperature, the spatial size of the gas is strongly affected by the Fermi pressure resulting from the Pauli exclusion principle and gives clear experimental evidence for quantum degeneracy.