Directed diffusion of reconstituting dimers

Barma, Mustansir ; Grynberg, Marcelo D ; Stinchcombe, Robin B (2007) Directed diffusion of reconstituting dimers Journal of Physics: Condensed Matter, 19 (6). pp. 1-10. ISSN 0953-8984

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We discuss the dynamical aspects of an asymmetric version of assisted diffusion of hard core particles on a ring studied by Menon et al (1997 J. Stat. Phys. 86 1237). The asymmetry brings in phenomena like kinematic waves and effects of the Kardar-Parisi-Zhang non-linearity, which combine with the feature of strongly broken ergodicity, a characteristic of the model. A central role is played by a single non-local invariant, the irreducible string, whose interplay with the driven motion of reconstituting dimers, arising from the assisted hopping, determines the asymptotic dynamics and scaling regimes. These are investigated both analytically and numerically through sector-dependent mappings to the asymmetric simple exclusion process.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics Publishing.
ID Code:1510
Deposited On:05 Oct 2010 12:22
Last Modified:16 May 2016 12:37

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