Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2004-03-30
Nucl. Phys. B 711 (2005) 530-564
Physics
Condensed Matter
Statistical Mechanics
35 pages
Scientific paper
10.1016/j.nuclphysb.2005.01.010
The field theory of self-avoiding tethered membranes still poses major challenges. In this article, we report progress on the toy-model of a manifold repelled by a single point. Our approach allows to sum the perturbation expansion in the strength g_0 of the interaction exactly in the limit of internal dimension D -> 2, yielding an analytic solution for the strong-coupling limit. This analytic solution is the starting point for an expansion in 2-D, which aims at connecting to the well studied case of polymers (D=1). We give results to fourth order in 2-D, where the dependence on g_0 is again summed exactly. As an application, we discuss plaquette density functions, and propose a Monte-Carlo experiment to test our results. These methods should also allow to shed light on the more complex problem of self-avoiding manifolds.
Pinnow Henryk A.
Wiese Kay J.
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