Observation of Fermi pressure in a gas of trapped atoms

被引：725

作者：

Truscott, AG

Strecker, KE

McAlexander, WI

Partridge, GB

Hulet, RG ^{[1
]}

机构：

[1] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA

[2] Rice Univ, Rice Quantum Inst, Houston, TX 77251 USA

来源：

SCIENCE | 2001年 / 291卷 / 5513期

关键词：

D O I：

10.1126/science.1059318

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

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页码：2570 / 2572

页数：3

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