Entropy of jammed matter

Christopher Briscoe, Chaoming Song, Ping Wang, Hernán A. Makse

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

We investigate the nature of randomness in disordered packings of frictional spheres. We calculate the entropy of 3D packings through the force and volume ensemble of jammed matter, a mesoscopic ensemble and numerical simulations using volume fluctuation analysis and graph theoretical methods. Equations of state are obtained relating entropy, volume fraction and compactivity characterizing the different states of jammed matter. At the mesoscopic level the entropy vanishes at random close packing, while the microscopic states contribute to a finite entropy. The entropy of the jammed system reveals that the random loose packings are more disordered than random close packings, allowing for an unambiguous interpretation of both limits.

Original languageEnglish (US)
Article number188001
JournalPhysical Review Letters
Volume101
Issue number18
DOIs
StatePublished - Oct 31 2008
Externally publishedYes

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entropy
equations of state
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Briscoe, C., Song, C., Wang, P., & Makse, H. A. (2008). Entropy of jammed matter. Physical Review Letters, 101(18), [188001]. https://doi.org/10.1103/PhysRevLett.101.188001

Entropy of jammed matter. / Briscoe, Christopher; Song, Chaoming; Wang, Ping; Makse, Hernán A.

In: Physical Review Letters, Vol. 101, No. 18, 188001, 31.10.2008.

Research output: Contribution to journalArticle

Briscoe, C, Song, C, Wang, P & Makse, HA 2008, 'Entropy of jammed matter', Physical Review Letters, vol. 101, no. 18, 188001. https://doi.org/10.1103/PhysRevLett.101.188001
Briscoe, Christopher ; Song, Chaoming ; Wang, Ping ; Makse, Hernán A. / Entropy of jammed matter. In: Physical Review Letters. 2008 ; Vol. 101, No. 18.
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