{ "id": "1902.09881", "version": "v1", "published": "2019-02-26T12:15:11.000Z", "updated": "2019-02-26T12:15:11.000Z", "title": "Dynamical aspects of spontaneous symmetry breaking in driven flow with exclusion", "authors": [ "S. L. A. de Queiroz", "R. B. Stinchcombe" ], "comment": "9 pages, 9 figures", "categories": [ "cond-mat.stat-mech" ], "abstract": "We present a numerical study of a two-lane version of the stochastic non-equilibrium model known as the totally asymmetric simple exclusion process. For such a system with open boundaries, and suitably chosen values of externally-imposed particle injection ($\\alpha$) and ejection ($\\beta$) rates, spontaneous symmetry breaking can occur. We investigate the statistics and internal structure of the stochastically-induced transitions, or \"flips\", which occur between opposite broken-symmetry states as the system evolves in time. From the distribution of time intervals separating successive flips, we show that the evolution of the associated characteristic times against externally-imposed rates yields information regarding the proximity to a critical point in parameter space. On short time scales, we probe for the possible existence of precursor events to a flip between opposite broken-symmetry states. We study an adaptation of domain-wall theory to mimic the density reversal process associated with a flip.", "revisions": [ { "version": "v1", "updated": "2019-02-26T12:15:11.000Z" } ], "analyses": { "keywords": [ "spontaneous symmetry breaking", "driven flow", "dynamical aspects", "intervals separating successive flips", "rates yields information regarding" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }