The real-space densities of a polarized strongly interacting two-component Fermi gas of 6Li atoms reveal two low-temperature regimes, both with a fully paired core. At the lowest temperatures, the unpolarized core deforms with increasing polarization. Sharp boundaries between the core and the excess unpaired atoms are consistent with a phase separation driven by a first-order phase transition. In contrast, at higher temperatures the core does not deform but remains unpolarized up to a critical polarization. The boundaries are not sharp in this case, indicating a partially polarized shell between the core and the unpaired atoms. The temperature dependence is consistent with a tricritical point in the phase diagram.
%0 Journal Article
%1 Partridge2006Deformation
%A Partridge, G. B.
%A Li, Wenhui
%A Liao, Y. A.
%A Hulet, R. G.
%A Haque, M.
%A Stoof, H. T. C.
%D 2006
%I American Physical Society
%J Physical Review Letters
%K cold\_atoms, imbalanced
%N 19
%P 190407+
%R 10.1103/physrevlett.97.190407
%T Deformation of a Trapped Fermi Gas with Unequal Spin Populations
%U http://dx.doi.org/10.1103/physrevlett.97.190407
%V 97
%X The real-space densities of a polarized strongly interacting two-component Fermi gas of 6Li atoms reveal two low-temperature regimes, both with a fully paired core. At the lowest temperatures, the unpolarized core deforms with increasing polarization. Sharp boundaries between the core and the excess unpaired atoms are consistent with a phase separation driven by a first-order phase transition. In contrast, at higher temperatures the core does not deform but remains unpolarized up to a critical polarization. The boundaries are not sharp in this case, indicating a partially polarized shell between the core and the unpaired atoms. The temperature dependence is consistent with a tricritical point in the phase diagram.
@article{Partridge2006Deformation,
abstract = {The real-space densities of a polarized strongly interacting two-component Fermi gas of 6Li atoms reveal two low-temperature regimes, both with a fully paired core. At the lowest temperatures, the unpolarized core deforms with increasing polarization. Sharp boundaries between the core and the excess unpaired atoms are consistent with a phase separation driven by a first-order phase transition. In contrast, at higher temperatures the core does not deform but remains unpolarized up to a critical polarization. The boundaries are not sharp in this case, indicating a partially polarized shell between the core and the unpaired atoms. The temperature dependence is consistent with a tricritical point in the phase diagram.},
added-at = {2014-01-09T15:14:33.000+0100},
author = {Partridge, G. B. and Li, Wenhui and Liao, Y. A. and Hulet, R. G. and Haque, M. and Stoof, H. T. C.},
biburl = {https://www.bibsonomy.org/bibtex/2db837fb80edbaa36c08268f76b0a593f/jaspervh},
citeulike-article-id = {8178919},
citeulike-linkout-0 = {http://dx.doi.org/10.1103/physrevlett.97.190407},
doi = {10.1103/physrevlett.97.190407},
interhash = {8cde5078f800b3a9fb5980e3bfb9da2a},
intrahash = {db837fb80edbaa36c08268f76b0a593f},
journal = {Physical Review Letters},
keywords = {cold\_atoms, imbalanced},
month = nov,
number = 19,
pages = {190407+},
posted-at = {2010-11-02 16:03:04},
priority = {2},
publisher = {American Physical Society},
timestamp = {2014-01-09T15:14:33.000+0100},
title = {Deformation of a Trapped Fermi Gas with Unequal Spin Populations},
url = {http://dx.doi.org/10.1103/physrevlett.97.190407},
volume = 97,
year = 2006
}