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Название: Decay of Correlations in the Regular Lorentz Gas
Авторы: Machta J., Reinhold B.
The regular Lorentz gas on triangular lattice is studied numerically and analytically. The velocity correlation function is shown to decay exponentially in the number of collisions with a decay rate which vanishes as the scatterers approach close packing. The crossover to power law decay at close packing is described by a scaling function.