Emergent Kinetics and Fractionalized Charge in 1D Spin-Orbit Coupled Flatband Optical Lattices
arXiv:1308.5601 · doi:10.1103/PhysRevLett.112.110404
Abstract
Recent ultracold atomic gas experiments implementing synthetic spin-orbit coupling allow access to flatbands that emphasize interactions. We model spin-orbit coupled fermions in a one-dimensional flatband optical lattice. We introduce an effective Luttinger-liquid theory to show that interactions generate collective excitations with emergent kinetics and fractionalized charge, analogous to properties found in the two-dimensional fractional quantum Hall regime. Observation of these excitations would provide an important platform for exploring exotic quantum states derived solely from interactions.
8 pages, 3 figures
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Cited by in corpus (16)
- Degenerate Quantum Gases with Spin-Orbit Coupling
- Gap Solitons in Spin-Orbit-Coupled Bose-Einstein Condensates in Optical Lattices
- Correlated dynamics in a synthetic lattice of momentum states
- Interacting atomic quantum fluids on momentum-space lattices
- Spin - orbital-angular-momentum coupling in Bose-Einstein condensates
- Interacting spin-orbit-coupled spin-1 Bose-Einstein condensates
- One-dimensional sawtooth and zigzag lattices for ultracold atoms
- Quantum phases of Bose-Einstein condensates with synthetic spin - orbital-angular-momentum coupling
- Superfluidity in the absence of kinetics in spin-orbit-coupled optical lattices
- Probing the Flat Band of Optically-Trapped Spin-Orbital Coupled Bose Gases Using Bragg Spectroscopy
- Spin-orbit coupled ultracold gases in optical lattices: High-band physics and insufficiency of tight-binding models
- Spin-orbit-coupled atomic Fermi gases in two-dimensional optical lattices in the presence of a Zeeman field
- Interaction-induced conductance from zero modes in a clean magnetic graphene waveguide
- Wavefunction Vortex Attachment via Matrix Products: Application to Atomic Fermi Gases in Flat Spin-Orbit Bands
- Stability of Emergent Kinetics in Optical Lattices with Artificial Spin-Orbit Coupling
- Band-edge superfluid of Bose-Einstein condensates in the spin-orbit-coupled Zeeman lattice