%0 Journal Article
%T Emergent Kinetics and Fractionalized Charge in 1D Spin-Orbit Coupled Flatband Optical Lattices
%A Fei Lin
%A Chuanwei Zhang
%A V. W. Scarola
%J Physics
%D 2013
%I arXiv
%R 10.1103/PhysRevLett.112.110404
%X 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.
%U http://arxiv.org/abs/1308.5601v3