Single-branch theory of ultracold Fermi gases with artificial Rashba spin-orbit coupling
arXiv:1212.3565 · doi:10.1088/0953-4075/46/13/134002
Abstract
We consider interacting ultracold fermions subject to Rashba spin-orbit coupling. We construct a single-branch interacting theory for the Fermi gas when the system is dilute enough so that the positive helicity branch is not occupied at all in the non-interacting ground state. We show that the theory is renormalizable in perturbation theory and therefore yields a model of polarized fermions that avoids a multi-channel treatment of the problem. Our results open the path towards a much more straightforward approach to the many-body physics of cold atoms subject to artificial vector potentials.
5 pages, 0 figures
References in corpus (9)
- Spin-Orbit Coupled Spinor Bose-Einstein Condensates
- A Bose-Einstein Condensate in a Uniform Light-induced Vector Potential
- Non-Abelian gauge potentials for ultra-cold atoms with degenerate dark states
- Atomic Quantum Simulation of Dynamical Gauge Fields coupled to Fermionic Matter: From String Breaking to Evolution after a Quench
- Bose Hubbard Models with Synthetic Spin-Orbit Coupling: Mott Insulators, Spin Textures and Superfluidity
- Exotic quantum spin models in spin-orbit-coupled Mott insulators
- Simulating an interacting gauge theory with ultracold Bose gases
- Magnetic phases of bosons with synthetic spin-orbit coupling in optical lattices
- Anisotropic current-induced spin accumulation in the two-dimensional electron gas with spin-orbit coupling