Exact large deviation functions and cumulants for the WASEP current and tracer statistics are obtained from the ASEP limit, with an explicit Lax pair mapping the MFT to an anisotropic Landau-Lifshitz spin chain.
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Integrability and exact large deviations of the weakly-asymmetric exclusion process
Exact large deviation functions and cumulants for the WASEP current and tracer statistics are obtained from the ASEP limit, with an explicit Lax pair mapping the MFT to an anisotropic Landau-Lifshitz spin chain.