U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Ultracold Fermion Cooling Cycle Using Heteronuclear Feshbach Resonances

Published

Author(s)

M A. Morales, N Nygaard, J E. Williams, Charles W. Clark

Abstract

We consider an ideal gas of Bose and Fermi atoms in a harmonic trap, with a Feshbach resonance in the interspecies atomic scattering that can lead to formation of fermionic molecules. We map out the phase diagram for this three-component mixture in chemical and thermal equilibrium. Considering adiabatic association and dissociation of the molecules, we identify a possible cooling cycle, which in ideal circumstances can yield an exponential increase of the phase-space density.
Citation
New Journal of Physics
Volume
7
Pub Type
Journals

Keywords

Bose-Ferm mixture, cooling cycle, Feshbach resonance, molecules

Citation

Morales, M. , Nygaard, N. , Williams, J. and Clark, C. (2005), Ultracold Fermion Cooling Cycle Using Heteronuclear Feshbach Resonances, New Journal of Physics (Accessed March 23, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created March 31, 2005, Updated October 12, 2021