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Population and mass imbalance in atomic Fermi gases
J. E. Baarsma, K. B. Gubbels, H. T. C. Stoof
We develop an accurate theory of resonantly interacting Fermi mixtures with both spin and mass imbalance. We consider Fermi mixtures with arbitrary mass imbalances, but focus in pa…
Second sound dipole mode in a partially Bose-Einstein condensed gas
R. Meppelink, S. B. Koller, J. M. Vogels +2
We study the second sound dipole mode in a partially Bose-Einstein condensed gas. This mode is excited by spatially separating and releasing the center-of-mass of the Bose-Einstein…
The imbalanced antiferromagnet in an optical lattice
Arnaud Koetsier, F. van Liere, H. T. C. Stoof
We study the rich properties of the imbalanced antiferromagnet in an optical lattice. We present its phase diagram, discuss spin waves and explore the emergence of topological exci…
Lifshitz Point in the Phase Diagram of Resonantly Interacting - Mixtures
K. B. Gubbels, J. E. Baarsma, H. T. C. Stoof
We consider a strongly interacting Li-K mixture, which is imbalanced both in the masses and the densities of the two fermionic species. At present, it is the exper…
Inhomogeneous Fermi mixtures at Unitarity: Bogoliubov-de Gennes vs. Landau-Ginzburg
J. M. Diederix, K. B. Gubbels, H. T. C. Stoof
We present an inhomogeneous theory for the low-temperature properties of a resonantly interacting Fermi mixture in a trap that goes beyond the local-density approximation. We compa…