Journal
ANNALES DE L INSTITUT HENRI POINCARE-PROBABILITES ET STATISTIQUES
Volume 58, Issue 2, Pages 1228-1243Publisher
INST MATHEMATICAL STATISTICS-IMS
DOI: 10.1214/21-AIHP1181
Keywords
Lorentz gas; Magnetic field; Generalized Boltzmann equation; Low-density limit; Non-Markovian process; Memory terms
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Funding
- CRC 1060 The mathematics of emergent effects of the University of Bonn through the German Science Foundation (DFG)
- SNSF [PCEFP2_181153]
- NCCR SwissMAP
- Swiss National Science Foundation (SNF) [PCEFP2_181153] Funding Source: Swiss National Science Foundation (SNF)
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In this study, we investigated a system of charged, noninteracting classical particles moving in a Poisson distribution of hard-disk scatterers in two dimensions, under the influence of a perpendicular magnetic field. We proved that, in the low-density limit, the particle distribution follows a generalized linear Boltzmann equation, which includes non-Markovian terms. By adapting the ideas from (Phys. Rev. 185 (1969) 308-322), we were able to demonstrate the convergence of the process with memory.
We study a system of charged, noninteracting classical particles moving in a Poisson distribution of hard-disk scatterers in two dimensions, under the effect of a magnetic field perpendicular to the plane. We prove that, in the low-density (Boltzmann-Grad) limit, the particle distribution evolves according to a generalized linear Boltzmann equation, previously derived and solved by Bobylev et al. (Phys. Rev. Lett. 75 (1995) 2, J. Stat. Phys. 87 (1997) 1205???1228, J. Stat. Phys. 102 (2001) 1133???1150). In this model, Boltzmann???s chaos fails, and the kinetic equation includes non-Markovian terms. The ideas of (Phys. Rev. 185 (1969) 308???322) can be however adapted to prove convergence of the process with memory.
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