Symmetry Breaking Far from Equilibrium.
PRINCETON UNIV NJ JOSEPH HENRY LABS OF PHYSICS
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An examination of the Rayleigh-Benard convection experiment shows that the defining features of long-range order and spontaneous symmetry breaking as they occur in equilibrium transitions, are also observed far from equilibrium. The broken symmetry is not, as has been suggested, translational invariance, but rather a discrete symmetry under velocity reversal. Some experimental consequences of these observations are outlined. Author