%0 Journal Article
%A Popkov, V.
%A Schmidt, J.
%A Schütz, Gunter M.
%T Superdiffusive Modes in Two-Species Driven Diffusive Systems
%J Physical review letters
%V 112
%N 20
%@ 1079-7114
%C College Park, Md.
%I APS
%M FZJ-2014-04586
%P 200602
%D 2014
%X Using mode-coupling theory and dynamical Monte Carlo simulations, we investigate the scaling behavor of the dynamical structure function of a two-species asymmetric simple exclusion process, consisting of two coupled single-lane asymmetric simple exclusion processes. We demonstrate the appearance of a superdiffusive mode with dynamical exponent z=5/3 in the density fluctuations, along with a Kardar-Parisi-Zhang mode with z=3/2; we argue that this phenomenon is generic for short-ranged driven diffusive systems with more than one conserved density. When the dynamics is symmetric under the interchange of the two lanes, a diffusive mode with z=2 appears instead of the non-Kardar-Parisi-Zhang superdiffusive mode.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000336250100003
%R 10.1103/PhysRevLett.112.200602
%U https://juser.fz-juelich.de/record/155420