Universität zu Köln

Popkov, V., Schmidt, J. and Schuetz, G. M. (2014). Superdiffusive Modes in Two-Species Driven Diffusive Systems. Phys. Rev. Lett., 112 (20). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Popkov, V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schmidt, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schuetz, G. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-437821
DOI:	10.1103/PhysRevLett.112.200602
Journal or Publication Title:	Phys. Rev. Lett.
Volume:	112
Number:	20
Date:	2014
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1079-7114
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CONSERVATION-LAWS; PHASE-TRANSITIONS; ONE-DIMENSION; SEPARATION; DYNAMICS Multiple languages Physics, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/43782