Exact results for the 1D interacting mixed Bose-Fermi gas

Details Exact results for the 1D interacting mixed Bose-Fermi gas Exact results for the 1D interacting mixed Bose-Fermi gas

2005-06-20

arxiv.org/abs/cond-mat/0506478v2

Phys. Rev. A 72, 061603 (2005)

Physics

Condensed Matter

Statistical Mechanics

12 pages, 4 figures, better comparison with hydrodynamic approach, typos corrected, references added, improved figures

Scientific paper

10.1103/PhysRevA.72.061603

The exact solution of the 1D interacting mixed Bose-Fermi gas is used to calculate ground-state properties both for finite systems and in the thermodynamic limit. The quasimomentum distribution, ground-state energy and generalized velocities are obtained as functions of the interaction strength both for polarized and non-polarized fermions. We do not observe any demixing instability of the system for repulsive interactions.

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