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Название: Scaling Analysis for the Adsorption Transition in a Watermelon Network of n Directed Non-Intersecting Walks
Авторы: Owczarek A.L., Essam J.W., Brak R.
Journal of Statistical Physics, Vol. 102, Nos. 3/4, 2001. p. 997-1017.
The partition function for the problem of n directed non-intersecting walks interacting via contact potentials with a wall parallel to the direction of the walks has previously been calculated as an n x n determinant. Here, we describe how to analyse the scaling behaviour of this problem using alternative representations of the solution. In doing so we derive the asymptotics of the partition function of a watermelon network of n such walks for all temperatures, and so calculate the associated network exponents in the three regimes: desorbed, adsorbed, and at the adsorption transition. Furthermore, we derive the full scaling function around the adsorption transition for all n. At the adsorption transition we also derive a simple "product form" for the partition function. These results have, in part, been derived using recurrence relations satisfied by the original determinantal solution.