BGU Physics Department

Colloquium, Dec. 13th, 2012

Hydrodynamics of Fractional Quantum Hall Liquid 

Paul Wiegman, University of Chicago

Electronic liquid in the Fractional Quantum Hall state has peculiar properties. In addition to well known quantization of Hall conductance, its features subtle effects of Lorentz shear force, magneto-roton spectrum,  an increase of the transverse  current in a non-uniform electromagnetic fields, etc. All these features follow from one unifying framework: flow of vortices  in a quantum incompressible rotating liquid.  I discuss the theory of quantum hydrodynamics of Fractional Quantum  Hall states developed in a close analog to hydrodynamics of superfluids by Landau and Feynman.