Geodesic
A Langevin Description for Driven Granular Gases
P. Maynar1 ; M. I. García de Soria1
1 Física Teórica, Universidad de Sevilla, Apartado de Correos 1065, E-41080, Sevilla, Spain
Mathematical modelling of natural phenomena, Tome 6 (2011) no. 4, pp. 87-117.

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The study of the fluctuations in the steady state of a heated granular system is reviewed. A Boltzmann-Langevin description can be built requiring consistency with the equations for the one- and two-particle correlation functions. From the Boltzmann-Langevin equation, Langevin equations for the total energy and the transverse velocity field are derived. The existence of a fluctuation-dissipation relation for the transverse velocity field is also studied.
DOI : 10.1051/mmnp/20116405

P. Maynar 1 ; M. I. García de Soria 1

1 Física Teórica, Universidad de Sevilla, Apartado de Correos 1065, E-41080, Sevilla, Spain 
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P. Maynar; M. I. García de Soria. A Langevin Description for Driven Granular Gases. Mathematical modelling of natural phenomena, Tome 6 (2011) no. 4, pp. 87-117. doi : 10.1051/mmnp/20116405. http://geodesic.mathdoc.fr/articles/10.1051/mmnp/20116405/

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