Scaling and aging in the homogeneous cooling state of a granular fluid of hard particles

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dc.creatorBrey, J. J.
dc.creatorPrados, A.
dc.creatorde Soria, M. I. Garcia
dc.creatorMaynar, P.
dc.date2007-09-07
dc.date2007-10-22
dc.date.accessioned2026-07-07T08:42:31Z
dc.date.available2026-07-07T08:42:31Z
dc.descriptionThe presence of the aging phenomenon in the homogeneous cooling state (HCS) of a granular fluid composed of inelastic hard spheres or disks is investigated. As a consequence of the scaling property of the $N$-particle distribution function, it is obtained that the decay of the normalized two-time correlation functions slows down as the time elapsed since the beginning of the measurement increases. This result is confirmed by molecular dynamics simulations for the particular case of the total energy of the system. The agreement is also quantitative in the low density limit, for which an explicit analytical form of the time correlation function has been derived. The reported results also provide support for the existence of the HCS as a solution of the N-particle Liouville equation.
dc.description17 pages, 3 figures; v3 revised version (minor changes, corrected typos, v2=v1 due to a submission error)accepted for publication in J. Phys. A: Math. Theor
dc.identifierhttps://arxiv.org/abs/0709.1035
dc.identifierhttp://arxiv.org/abs/0709.1035
dc.identifierJ. Phys. A: Math. Theor. 40 (2007) 14331-14342
dc.identifierdoi:10.1088/1751-8113/40/48/001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/141986
dc.subjectStatistical Mechanics
dc.titleScaling and aging in the homogeneous cooling state of a granular fluid of hard particles
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