First order wetting of rough substrates and quantum unbinding

Details First order wetting of rough substrates and quantum unbinding First order wetting of rough substrates and quantum unbinding

1998-04-02

arxiv.org/abs/cond-mat/9804016v1

Physics

Condensed Matter

Statistical Mechanics

11 pages, 1 figure

Scientific paper

10.1103/PhysRevE.58.2979

Replica and functional renormalization group methods show that, with short range substrate forces or in strong fluctuation regimes, wetting of a self-affine rough wall in 2D turns first-order as soon as the wall roughness exponent exceeds the anisotropy index of bulk interface fluctuations. Different thresholds apply with long range forces in mean field regimes. For bond-disordered bulk, fixed point stability suggests similar results, which ultimately rely on basic properties of quantum bound states with asymptotically power-law repulsive potentials.

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