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http://hdl.handle.net/1942/14467
Title: | Current fluctuations in the weakly asymmetric exclusion process with open boundaries | Authors: | GORISSEN, Mieke VANDERZANDE, Carlo |
Issue Date: | 2012 | Publisher: | AMER PHYSICAL SOC | Source: | PHYSICAL REVIEW E, 86 (5) | Abstract: | The additivity principle allows a calculation of current fluctuations and associated density profiles in large diffusive systems. We apply this principle to the weakly asymmetric exclusion process (WASEP). We also calculate the cumulant generating function of the current and the density profiles associated with rare currents in finite systems using a numerical approach based on the density matrix renormalization group. Comparison of the two approaches allows us to verify the validity of the additivity principle and to get insight into the finite size scaling theory for current fluctuations in the WASEP. No evidence for a dynamical phase transition is found. | Notes: | [Gorissen, Mieke; Vanderzande, Carlo] Hasselt Univ, Fac Sci, B-3590 Diepenbeek, Belgium. [Vanderzande, Carlo] KULeuven, Inst Theoret Fys, B-3001 Heverlee, Belgium. | Keywords: | Physics, Fluids & Plasmas; Physics, Mathematical; matrix renormalization-group; statistical-mechanics; formulation; symmetry | Document URI: | http://hdl.handle.net/1942/14467 | ISSN: | 1539-3755 | DOI: | 10.1103/PhysRevE.86.051114 | ISI #: | 000311145000001 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2013 |
Appears in Collections: | Research publications |
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