American Physical Society, Physical review E: Statistical, nonlinear, and soft matter physics, 1(80)
DOI: 10.1103/physreve.80.011131
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There exist some boundary-driven open systems with diffusive dynamics whose particle current fluctuations exhibit universal features that belong to the Edwards-Wilkinson universality class. We achieve this result by establishing a mapping, for the system fluctuations, to an equivalent open yet equilibrium-diffusive system. We discuss the possibility of observing dynamic phase transitions using the particle current as a control parameter.