Landau theory for non-equilibrium steady states

@article{Aron2020LandauTF,
  title={Landau theory for non-equilibrium steady states},
  author={Camille Aron and Claudio Chamon},
  journal={SciPost Physics},
  year={2020}
}
We examine how non-equilibrium steady states close to a continuous phase transition can still be described by a Landau potential if one forgoes the assumption of analyticity. In a system simultaneously coupled to several baths at different temperatures, the non-analytic potential arises from the different density of states of the baths. In periodically driven-dissipative systems, the role of multiple baths is played by a single bath transferring energy at different harmonics of the driving… 

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