Tuesday, July 9, 2013

1307.1700 (David Mesterházy et al.)

New Dynamic Critical Behavior for Model C    [PDF]

David Mesterházy, Jan H. Stockemer, Leticia F. Palhares, Jürgen Berges
We establish an anomalous diffusion phase with new scaling properties for the relaxational critical dynamics of a non-conserved order parameter coupled to a conserved scalar density (Model C). It satisfies weak dynamic scaling while the conserved density diffuses only asymptotically. Together with the conventional weak, strong, and decoupled scaling regions, we compute the phase diagram for the dynamic critical behavior directly in 2 < d < 4 space dimensions within the framework of the nonperturbative functional renormalization group. The scaling exponents characterizing the different phases are determined along with subleading indices featuring the stability properties.
View original: http://arxiv.org/abs/1307.1700

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