Multiple phase separation in one-dimensional mixtures of mass- and population-imbalanced attractive Fermi gases

Sangwoo S. Chung; C. J. Bolech

doi:10.1103/physreva.96.023609

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arXiv · 1612.03149

Multiple phase separation in one-dimensional mixtures of mass- and population-imbalanced attractive Fermi gases

Sangwoo S. Chung·C. J. Bolech

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Abstract

We study the attractive Fermi mixture of a ${}^{6}\mathrm{Li}$-${}^{40}\mathrm{K}$ gas in one dimension using the continuous matrix product states variational ansatz and obtain the $T=0$ phase diagram. We predict an axial density profile that contains four distinct phases trapped induced along one-dimensional (1D) tubes, which is more intricate than those observed in 1D mass-balanced systems or in higher-dimensional gas clouds. The parameter regimes explored are realistic in view of possible future experiments. This an application of continuous matrix product states to a nonintegrable fermionic system.

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Sangwoo S. Chung, C. J. Bolech. 2017-08-10. Multiple phase separation in one-dimensional mixtures of mass- and population-imbalanced attractive Fermi gases. https://doi.org/10.1103/physreva.96.023609

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