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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/25263

Title: General criterion for harmonicity
Authors: Proesmans, Karel
Vandebroek, Hans
Van den Broeck, Christian
Issue Date: 2017
Citation: PHYSICAL REVIEW LETTERS, 119(14), p. 1-5 (Art N° 147803)
Abstract: Inspired by Kubo-Anderson Markov processes, we introduce a new class of transfer matrices whose largest eigenvalue is determined by a simple explicit algebraic equation. Applications include the free energy calculation for various equilibrium systems and a general criterion for perfect harmonicity, i.e., a free energy that is exactly quadratic in the external field. As an illustration, we construct a “perfect spring,” namely, a polymer with non-Gaussian, exponentially distributed subunits which, nevertheless, remains harmonic until it is fully stretched. This surprising discovery is confirmed by Monte Carlo and Langevin simulations.
Notes: Proesmans, K (reprint author), Hasselt Univ, B-3590 Diepenbeek, Belgium. Karel.Proesmans@uhasselt.be
URI: http://hdl.handle.net/1942/25263
DOI: 10.1103/PhysRevLett.119.147803
ISI #: 000412438300008
ISSN: 0031-9007
Category: A1
Type: Journal Contribution
Appears in Collections: Research publications

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