Journal
JOURNAL OF STATISTICAL PHYSICS
Volume 177, Issue 1, Pages 151-182Publisher
SPRINGER
DOI: 10.1007/s10955-019-02363-8
Keywords
Large deviation function; Fluctuating hydrodynamics; Non-equilibrium steady state; Symmetric simple exclusion process
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For diffusive many-particle systems such as the SSEP (symmetric simple exclusion process) or independent particles coupled with reservoirs at the boundaries, we analyze the density fluctuations conditioned on the current integrated over a large time. We determine the conditioned large deviation function of the density by a microscopic calculation. We then show that it can be expressed in terms of the solutions of Hamilton-Jacobi equations, which can be written for general diffusive systems using a fluctuating hydrodynamics description.
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