Observation of Fermi Pressure in a Gas of Trapped Atoms

Date

Authors

Truscott, Andrew
Strecker, K E
McAlexander, William I
Partridge, G B
Hulet, Randall G

Journal Title

Journal ISSN

Volume Title

Publisher

American Association for the Advancement of Science

Abstract

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.

Description

Citation

Source

Science

Book Title

Entity type

Access Statement

License Rights

Restricted until

2037-12-31