Violation of local equilibrium thermodynamics in one-dimensional Hamiltonian-Potts model (opens in new tab)

arXiv:2602.02946v1 Announce Type: new Abstract: We investigate non-equilibrium phase coexistence associated with a first-order phase transition by numerically studying a one-dimensional Hamiltonian-Potts model with fractional spatial derivatives. The fractional derivative is introduced so as to reproduce the low-wavenumber density of states of the standard two-dimensional model, allowing phase coexistence to occur in a minimal one-dimensional setting under steady heat conduction. By imposing...