Evaporative cooling of a two-component degenerate Fermi gas

M. J. Holland, B. DeMarco, D. S. Jin

Research output: Contribution to journalArticlepeer-review

Abstract

We derive a quantum theory of evaporative cooling for a degenerate Fermi gas with two constituents and show that the optimum cooling trajectory is influenced significantly by the quantum statistics of the particles. The cooling efficiency is reduced at low temperatures due to Pauli blocking of available final states in each binary collision event. We compare the theoretical optimum trajectory with experimental data on cooling a quantum degenerate cloud of potassium-40, and show that temperatures as low as 0.3 times the Fermi temperature can now be achieved.

Original languageEnglish (US)
Pages (from-to)6
Number of pages1
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume61
Issue number5
DOIs
StatePublished - 2000
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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