Volume 86, Number 2, April 2009
|Number of page(s)||6|
|Published online||30 April 2009|
Fluctuation force exerted by a planar self-avoiding polymer
CNRS-Laboratoire de Physique Théorique de l'Ecole Normale Supérieure - 24 rue Lhomond, 75231 Paris Cedex, France, EU
Corresponding author: firstname.lastname@example.org
Accepted: 16 March 2009
Using the results from Schramm Löwner evolution (SLE), we give the expression of the fluctuation-induced force exerted by a polymer on a small impenetrable disk, in various two-dimensional domain geometries. We generalize to two polymers and examine whether the fluctuation force can trap the object into a stable equilibrium. We compute the force exerted on the objects at the domain boundary, and the force mediated by the polymer between such objects. The results can straightforwardly be extended to any SLE interface, including Ising, percolation, and loop-erased random walks. Some are relevant for extremal value statistics.
PACS: 24.60.-k – Statistical theory and fluctuations / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 66.30.hk – Polymers
© EPLA, 2009
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