Lin, FeiZhang, ChuanweiScarola, V. W.2014-08-072014-08-072014-03-182014-03-182013-08-290031-9007http://hdl.handle.net/10735.1/3854Includes supplementary material.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.en©2014 American Physical SocietyOptical latticesQuantum theoryFermionsSpin orbitsDynamicsArticleLin, Fei, Chuanwei Zhang, and V. W. Scarola. 2014. "Emergent Kinetics and Fractionalized Charge in 1D Spin-Orbit Coupled Flatband Optical Lattices." Physical Review Letters 112(11): 110404-110404.11211110404