TY - JOUR
T1 - Energy and number of collision fluctuations in inelastic gases
AU - Lambiotte, R.
AU - Ausloos, M.
AU - Brenig, L.
AU - Salazar, J.M.
N1 - Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2007/2/15
Y1 - 2007/2/15
N2 - The two-dimensional Inelastic Maxwell Model (IMM) is studied by numerical simulations. It is shown how the inelasticity of collisions together with the fluctuations of the number of collisions undergone by a particle lead to energy fluctuations. These fluctuations are associated to a shrinking of the available phase space. We find the asymptotic scaling of these energy fluctuations and show how they affect the tail of the velocity distribution during long time intervals. We stress that these fluctuations relax like power laws on much slower time scales than the usual exponential relaxations taking place in kinetic theory.
AB - The two-dimensional Inelastic Maxwell Model (IMM) is studied by numerical simulations. It is shown how the inelasticity of collisions together with the fluctuations of the number of collisions undergone by a particle lead to energy fluctuations. These fluctuations are associated to a shrinking of the available phase space. We find the asymptotic scaling of these energy fluctuations and show how they affect the tail of the velocity distribution during long time intervals. We stress that these fluctuations relax like power laws on much slower time scales than the usual exponential relaxations taking place in kinetic theory.
UR - http://www.scopus.com/inward/record.url?scp=33751515576&partnerID=8YFLogxK
U2 - 10.1016/j.physa.2006.08.032
DO - 10.1016/j.physa.2006.08.032
M3 - Article
AN - SCOPUS:33751515576
SN - 0378-4371
VL - 375
SP - 227
EP - 232
JO - Physica A: Statistical Mechanics and its Applications
JF - Physica A: Statistical Mechanics and its Applications
IS - 1
ER -