Phase diagram of a two-component Fermi gas with resonant interactions

Yong-il Shin (), Christian H. Schunck, André Schirotzek and Wolfgang Ketterle
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Yong-il Shin: MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, MIT, Cambridge, Massachusetts, 02139, USA
Christian H. Schunck: MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, MIT, Cambridge, Massachusetts, 02139, USA
André Schirotzek: MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, MIT, Cambridge, Massachusetts, 02139, USA
Wolfgang Ketterle: MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, MIT, Cambridge, Massachusetts, 02139, USA

Nature, 2008, vol. 451, issue 7179, 689-693

Abstract: A major controversy has surrounded the stability of superfluidity in spin-polarized Fermi gas systems with resonant interactions when the 'up' and 'down' spin components are imbalanced. This problem is explored for a Fermi gas of 6Li atoms, using tomographic techniques to map out the superfluid phases as the temperature and density imbalance are varied. Evidence is found for various types of phase transitions, enabling quantitative tests of theoretical calculations on the stability of resonant superfluidity.

Date: 2008
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DOI: 10.1038/nature06473

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