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Marcozzi, M.; Nota, A.
Journal of statistical physics, 03/2016, Letnik: 162, Številka: 6Journal Article
We consider a test particle moving in a random distribution of obstacles in the plane, under the action of a uniform magnetic field, orthogonal to the plane. We show that, in a weak coupling limit, the particle distribution behaves according to the linear Landau equation with a magnetic transport term. Moreover, we show that, in a low density regime, when each obstacle generates an inverse power law potential, the particle distribution behaves according to the linear Boltzmann equation with a magnetic transport term. We provide an explicit control of the error in the kinetic limit by estimating the contributions of the configurations which prevent the Markovianity. We compare these results with those ones obtained for a system of hard disks in Bobylev et al. (Phys Rev Lett 75:2, 1995 ), which show instead that the memory effects are not negligible in the Boltzmann-Grad limit.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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