Lin, F.Zhang, C.Scarola, Vito W.2017-02-202017-02-202014-03-180031-9007http://hdl.handle.net/10919/75094Recent 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 flat band 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.5 pagesapplication/pdfenIn CopyrightPhysics, MultidisciplinaryPhysicsQUANTUMCOLLISIONSWAVESGASESNOISEArticle - Refereedhttps://doi.org/10.1103/PhysRevLett.112.11040411211Scarola, VW [0000-0002-8653-2723]