Correlation between particle motion and Voronoi-cell-shape fluctuations during the compaction of granular matter

Correlation between particle motion and Voronoi-cell-shape fluctuations during the compaction of granular matter

We track particle motions in a granular material subjected to compaction using a laser scattering-based imaging method where compaction is achieved through thermal cycling. Particle displacements in this jammed fluid correlate strongly with rearrangements of the Voronoi cells defining the local envi...

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Veröffentlicht in:Physical review letters 2008-12, Vol.101 (25), p.258001-258001, Article 258001
Hauptverfasser: Slotterback, Steven, Toiya, Masahiro, Goff, Leonard, Douglas, Jack F, Losert, Wolfgang
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container_issue 25
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container_title Physical review letters
container_volume 101
creator Slotterback, Steven
Toiya, Masahiro
Goff, Leonard
Douglas, Jack F
Losert, Wolfgang
description We track particle motions in a granular material subjected to compaction using a laser scattering-based imaging method where compaction is achieved through thermal cycling. Particle displacements in this jammed fluid correlate strongly with rearrangements of the Voronoi cells defining the local environment about the particles, similar to previous observations of Rahman on cooled liquids. Our observations provide further evidence of commonalities between particle dynamics in granular matter close to jamming and supercooled liquids.
doi_str_mv 10.1103/physrevlett.101.258001
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title Correlation between particle motion and Voronoi-cell-shape fluctuations during the compaction of granular matter
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