Collisional relaxation in a fermionic gas
arXiv:cond-mat/9904162 · doi:10.1103/PhysRevA.59.R4125
Abstract
We propose a method to study the degeneracy of a trapped atomic gas of fermions through the relaxation of the motion of a test particle. In the degenerate regime, and for an energy of the test particle well below the Fermi energy, we show that the Fermi-Dirac statistics is responsible for a strong decrease of the relaxation rate. This method can be used to directly measure the temperature of the fermionic gas.
5 pages Revtex, 4 eps figure, to be publisced on PRA Rapid Com
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