Energy landscapes in random systems, driven interfaces, and wetting

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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en

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Physical Review Letters, Volume 84, issue 17, pp. 3982-3985

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We discuss the zero-temperature susceptibility of elastic manifolds with quenched randomness. It diverges with system size due to low-lying local minima. The distribution of energy gaps is deduced to be constant in the limit of vanishing gaps by comparing numerics with a probabilistic argument. The typical manifold response arises from a level-crossing phenomenon and implies that wetting in random systems begins with a discrete transition. The associated “jump field” scales as ⟨h⟩∼L−5/3 and L−2.2 for (1+1) and (2+1) dimensional manifolds with random bond disorder.

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Seppälä, E T & Alava, M J 2000, 'Energy landscapes in random systems, driven interfaces, and wetting', Physical Review Letters, vol. 84, no. 17, pp. 3982-3985. https://doi.org/10.1103/PhysRevLett.84.3982