Abstract
We study pairing of an interacting three-component Fermi gas in two dimensions. By using a mean-field theory to decouple the interactions between different pairs of Fermi components, we study the free energy landscapes as a function of various system parameters including chemical potentials, binding energies, and temperature. We find that the s -wave pairing channel is determined by both chemical potentials and the interaction strengths between the three available channels. We find a second-order thermal phase transition and a series of first-order quantum phase transitions for a homogenous system as we change the parameters. In particular, for symmetric parameters, we find the simultaneous existence of three superfluid orders as well as re-entrant quantum phase transitions as we tune the parameters.
Original language | English (US) |
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Article number | 013620 |
Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
Volume | 80 |
Issue number | 1 |
DOIs | |
State | Published - Aug 6 2009 |
Externally published | Yes |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics