Relaxation and diffusion in a globally coupled Hamiltonian system.
作者： Yoshiyuki Y. Yamaguchi
DOI: 10.1103/PHYSREVE.68.066210
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摘要: The relation between relaxation and diffusion is investigated in a Hamiltonian system of globally coupled rotators. Diffusion anomalous if only the going towards equilibrium. anomaly not taking power-type function, but transient due to nonstationarity. For certain type initial condition, quasistationary states, can be explained by stretched exponential correlation whose stretching exponent almost constant time linear as functions degrees freedom. full evolution characterized varying time.
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