Rotation induced superfluid-normal phase separation in trapped Fermi gases
arXiv:0811.3010 · doi:10.1103/PhysRevA.79.053621
Abstract
We use the Bogoliubov-de Gennes formalism to analyze the effects of rotation on the ground state phases of harmonically trapped Fermi gases, under the assumption that quantized vortices are not excited. We find that the rotation breaks Cooper pairs that are located near the trap edge, and that this leads to a phase separation between the nonrotating superfluid (fully paired) atoms located around the trap center and the rigidly rotating normal (nonpaired) atoms located towards the trap edge, with a coexistence (partially paired) region in between. Furthermore, we show that the superfluid phase that occurs in the coexistence region is characterized by a gapless excitation spectrum, and that it is distinct from the gapped phase that occurs near the trap center.
5 pages with 3 figures
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Cited by in corpus (10)
- Pairing Phase Transitions of Matter under Rotation
- Spin Hydrodynamic Generation in the Charged Subatomic Swirl
- Exotic paired states with anisotropic spin-dependent Fermi surfaces
- The Splitting of Chiral and Deconfinement Phase Transitions induced by Rotation
- Cooper pairing and BCS-BEC evolution in mixed-dimensional Fermi gases
- Vortex formation in a rotating two-component Fermi gas
- Finite temperature vortices in a rotating Fermi gas
- Rotating a Rashba-coupled Fermi gas in two dimensions
- Interplay between Rashba spin-orbit coupling and adiabatic rotation in a two-dimensional Fermi gas
- Vortices in Fermi gases with spin-dependent rotation potentials