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Jammed hard-particle packings: From Kepler to Bernal and beyond
Rev. Mod. Phys. 82, 2633 – Published 15 September, 2010
DOI: https://doi.org/10.1103/RevModPhys.82.2633
Abstract
Understanding the characteristics of jammed particle packings provides basic insights into the structure and bulk properties of crystals, glasses, and granular media and into selected aspects of biological systems. This review describes the diversity of jammed configurations attainable by frictionless convex nonoverlapping (hard) particles in Euclidean spaces and for that purpose it stresses individual-packing geometric analysis. A fundamental feature of that diversity is the necessity to classify individual jammed configurations according to whether they are locally, collectively, or strictly jammed. Each of these categories contains a multitude of jammed configurations spanning a wide and (in the large system limit) continuous range of intensive properties, including packing fraction , mean contact number , and several scalar order metrics. Application of these analytical tools to spheres in three dimensions (an analog to the venerable Ising model) covers a myriad of jammed states, including maximally dense packings (as Kepler conjectured), low-density strictly jammed tunneled crystals, and a substantial family of amorphous packings. With respect to the last of these, the current approach displaces the historically prominent but ambiguous idea of “random close packing” with the precise concept of “maximally random jamming.” Both laboratory procedures and numerical simulation protocols can and, frequently, have been used for creation of ensembles of jammed states. But while the resulting distributions of intensive properties may individually approach narrow distributions in the large system limit, the distinguishing varieties of possible operational details in these procedures and protocols lead to substantial variability among the resulting distributions, some examples of which are presented here. This review also covers recent advances in understanding jammed packings of polydisperse sphere mixtures, as well as convex nonspherical particles, e.g., ellipsoids, “superballs,” and polyhedra. Because of their relevance to error-correcting codes and information theory, sphere packings in high-dimensional Euclidean spaces have been included as well. Some remarks are also made about packings in (curved) non-Euclidean spaces. In closing this review, several basic open questions for future research to consider have been identified.
Corrections
19 October, 2010
Erratum
Publisher's Note: Jammed hard-particle packings: From Kepler to Bernal and beyond [Rev. Mod. Phys. 82, 2633 (2010)]
Article Text
References (212)
- Adda-Bedia, M., E. Katzav, and D. Vella, 2008, “Solution of the Percus-Yevick equation for hard hyperspheres in even dimensions,” J. Chem. Phys. 129, 144506.
- Ajtai, M., 1998, STOC ‘98: Proceedings of the 13th Annual ACM Symposium on Theory of Computing (Association for Computing Machinery, New York), pp. 10–19.
- Alexander, S., 1998, “Amorphous solids: Their structure, lattice dynamics, and elasticity,” Phys. Rep. 296, 65–236.
- Allen, M. P., 1993, “Simulations using hard particles,” Philos. Trans. R. Soc. London, Ser. A 344, 323–337.
- Andreev, A. F., 1964, “Singularity of thermodynamic quantities at a first order phase transition point,” Sov. Phys. JETP 18, 1415–1416.
- Anonymous, 1972, “What is random packing?,” Nature (London) 239, 488–489.
- Ashcroft, N. W., and D. N. Mermin, 1976, Solid State Physics (Thomson Learning, Toronto).
- Aste, T., M. Saadatfar, and T. Senden, 2006, “Local and global relations between the number of contacts and density in monodisperse sphere packs,” J. Stat. Mech.: Theory Exp. 2006, P07010.
- Aste, T., and D. Weaire, 2008, The Pursuit of Perfect Packing, 2nd ed. (Taylor & Francis, New York).
- Ball, K., 1992, “A lower bound for the optimal density of lattice packings,” Int. Math. Res. Notices 1992, 217–221.
- Barlow, W., 1883, “Probable nature of the internal symmetry of crystals,” Nature (London) 29, 186–188.
- Bernal, J. D., 1960, “Geometry and the structure of monatomic liquids,” Nature (London) 185, 68–70.
- Bernal, J. D., 1965, in Liquids: Structure, Properties, Solid Interactions, edited by T. J. Hughel (Elsevier, New York), pp. 25–50.
- Berryman, J. G., 1983, “Random close packing of hard spheres and disks,” Phys. Rev. A 27, 1053–1061.
- Betke, U., and M. Henk, 2000, “Densest lattice packings of 3-polytopes,” Comput. Geom. 16, 157–186.
- Bezdek, K. R Connelly, and A. Bezdek, 1998, “Finite and uniform stability of sphere packings,” Discrete Comput. Geom. 20, 111–130.
- Blichfeldt, H., 1929, “The minimum value of quadratic forms and the closest packing of spheres,” Math. Ann. 101, 605–608.
- Boltzmann, L., 1898, Lectures on Gas Theory (University of California Press, Berkeley), 1964 translation by S. G. Brush of the original 1898 publication.
- Böröczky, K., 1964, “Uber stabile kreis-und kugelsysteme,” Ann. Univ. Sci. Budapest Estvss. Sect. Math. 7, 79–82.
- Bowen, L., and C. Radin, 2003, “Densest packing of equal spheres in hyperbolic space,” Discrete Comput. Geom. 29, 23–29.
- Bowick, M. J., A. Cacciuto, D. R. Nelson, and A. Travesset, 2006, “Crystalline particle packings on a sphere with long-range power-law potentials,” Phys. Rev. B 73, 024115.
- Brujic, J., S. F. Edwards, I. Hopkinson, and H. A. Makse, 2003, “Measuring distribution of interdroplet forces in a compressed emulsion system,” Physica A 327, 201–212.
- Burnell, F. J., and S. L. Sondhi, 2008, “Classical antiferromagnetism on Torquato-Stillinger packings,” Phys. Rev. B 78, 024407.
- Chaikin, P. M., and T. C. Lubensky, 1995, Principles of Condensed Matter Physics (Cambridge University Press, New York).
- Chaikin, P. M., S. Wang, and A. Jaoshvili, 2007, in American Physical Society March Meeting, unpublished.
- Chaudhuri, P., L. Berthier, and S. Sastry, 2010, “Jamming transitions in amorphous packings of frictionless spheres occur over a continuous range of volume fractions,” Phys. Rev. Lett. 104, 165701.
- Chen, E. R., 2008, “A dense packing of regular tetrahedra,” Discrete Comput. Geom. 40, 214–240.
- Chen, E. R., M. Engel, and S. C. Glotzer, 2010, “Dense crystalline dimer packings of regular tetrahedra,” Discrete Comput. Geom. 44, 253–280.
- Christensen, R. M., 1979, Mechanics of Composite Materials (Wiley, New York).
- Clisby, N., and B. M. McCoy, 2006, “Ninth and tenth order virial coefficients for hard spheres in D dimensions,” J. Stat. Phys. 122, 15–57.
- Clusel, M., E. I. Corwin, A. O. N. Siemens, and J. Brujić, 2009, “A ‘granocentric' model for random packing of jammed emulsions,” Nature (London) 460, 611–615.
- Cohn, H., 2002, “New upper bounds on sphere packings II,” Geom. Topol. 6, 329–353.
- Cohn, H., and N. Elkies, 2003, “New upper bounds on sphere packings I,” Ann. Math. 20, 689–714.
- Cohn, H., and A. Kumar, 2007a, private communication.
- Cohn, H., and A. Kumar, 2007b, “Universally optimal distribution of points on spheres,” J. Am. Math. Soc. 20, 99–148.
- Cohn, H., and A. Kumar, 2009, “Optimality and uniqueness of the Leech lattice among lattices,” Ann. Math. 170, 1003–1050.
- Connelly, R., 1982, “Rigidity and energy,” Invent. Math. 66, 11–33.
- Connelly, R., and W. Whiteley, 1996, “Second-order rigidity and prestress stability for tensegrity frameworks,” SIAM J. Discrete Math. 9, 453–491.
- Conway, J. H., and N. J. A. Sloane, 1995, “What are all the best sphere packings low dimensions?,” Discrete Comput. Geom. 13, 383–403.
- Conway, J. H., and N. J. A. Sloane, 1998, Sphere Packings, Lattices, and Groups (Springer-Verlag, New York).
- Conway, J. H., and S. Torquato, 2006, “Packing, tiling, and covering with tetrahedra,” Proc. Natl. Acad. Sci. U.S.A. 103, 10612–10617.
- Cooper, D. W., 1988, “Random-sequential-packing simulations in three dimensions for spheres,” Phys. Rev. A 38, 522–524.
- Costin, O., and J. Lebowitz, 2004, “On the construction of particle distributions with specified single and pair densities,” J. Phys. Chem. B 108, 19614–19618.
- Coxeter, H. S. M., 1973, Regular Polytopes (Dover, New York).
- Cramer, H., 1954, Mathematical Methods of Statistics (Princeton University Press, Princeton, NJ).
- Crawford, J. R., S. Torquato, and F. H. Stillinger, 2003, “Aspects of correlation function realizability,” J. Chem. Phys. 119, 7065–7074.
- Davenport, H., and C. Rogers, 1947, “Hlawka’s theorem in the geometry of numbers,” Duke Math. J. 14, 367–375.
- Delsarte, P., J.-M. Goethals, and J. Seidel, 1977, “Spherical codes and designs,” Geom. Dedicata 6, 363–388.
- Dijkstra, M., R. van Roij, and R. Evans, 1999, “Direct simulation of the phase behavior of binary hard-sphere mixtures: Test of the depletion potential description,” Phys. Rev. Lett. 82, 117–120.
- Domb, C., 1960, “On the theory of cooperative phenomena in crystals,” Adv. Phys. 9, 245–361.
- Donev, A., I. Cisse, D. Sachs, E. A. Variano, F. H. Stillinger, R. Connelly, S. Torquato, and P. M. Chaikin, 2004, “Improving the density of jammed disordered packings using ellipsoids,” Science 303, 990–993.
- Donev, A., R. Connelly, F. H. Stillinger, and S. Torquato, 2007, “Underconstrained jammed packings of nonspherical hard particles: Ellipses and ellipsoids,” Phys. Rev. E 75, 051304.
- Donev, A., F. H. Stillinger, P. M. Chaikin, and S. Torquato, 2004, “Unusually dense crystal ellipsoid packings,” Phys. Rev. Lett. 92, 255506.
- Donev, A., F. H. Stillinger, and S. Torquato, 2005, “Unexpected density fluctuations in disordered jammed hard-sphere packings,” Phys. Rev. Lett. 95, 090604.
- Donev, A., F. H. Stillinger, and S. Torquato, 2006, “Do binary hard disks exhibit an ideal glass transition?,” Phys. Rev. Lett. 96, 225502.
- Donev, A., F. H. Stillinger, and S. Torquato, 2007, “Configurational entropy of binary hard-disk glasses: nonexistence of an ideal glass transition,” J. Chem. Phys. 127, 124509.
- Donev, A., S. Torquato, and F. H. Stillinger, 2005a, “Neighbor list collision-driven molecular dynamics for nonspherical hard particles: I. Algorithmic details,” J. Comput. Phys. 202, 737–764.
- Donev, A., S. Torquato, and F. H. Stillinger, 2005b, “Neighbor list collision-driven molecular dynamics for nonspherical hard particles: II. Applications to ellipses and ellipsoids,” J. Comput. Phys. 202, 765–793.
- Donev, A., S. Torquato, and F. H. Stillinger, 2005c, “Pair correlation function characteristics of nearly jammed disordered and ordered hard-sphere packings,” Phys. Rev. E 71, 011105.
- Donev, A., S. Torquato, F. H. Stillinger, and R. Connelly, 2004a, “Jamming in hard sphere and disk packings,” J. Appl. Phys. 95, 989–999.
- Donev, A., S. Torquato, F. H. Stillinger, and R. Connelly, 2004b, “A linear programming algorithm to test for jamming in hard-sphere packings,” J. Comput. Phys. 197, 139–166.
- Donev, A., S. Torquato, F. H. Stillinger, and R. Connelly, 2004c, “Comment on ‘Jamming at zero temperature and zero applied stress: The epitome of disorder,’ ” Phys. Rev. E 70, 043301.
- Edwards, S. F., 1994, Granular Matter (Springer-Verlag, New York).
- Edwards, S. F., and D. V. Grinev, 2001, “The tensorial formulation of volume function for packings of particles,” Chem. Eng. Sci. 56, 5451–5455.
- Elkies, N. D., 2000, “Lattices, linear codes, and invariants: Part I,” Not. Am. Math. Soc. 47, 1238–1245.
- Ellis, R., 2001, “Macromolecular crowding: Obvious but underappreciated,” Trends Biochem. Sci. 26, 597–604.
- Errington, J. R., and P. G. Debenedetti, 2001, “Relationship between structural order and the anomalies of liquid water,” Nature (London) 409, 318–321.
- Errington, J. R., P. G. Debenedetti, and S. Torquato, 2002, “Cooperative origin of low-density domains in liquid water,” Phys. Rev. Lett. 89, 215503.
- Errington, J. R., P. G. Debenedetti, and S. Torquato, 2003, “Quantification of order in the Lennard-Jones system,” J. Chem. Phys. 118, 2256–2263.
- Feder, J., 1980, “Random sequential adsorption,” J. Theor. Biol. 87, 237–254.
- Fejes Tóth, L., 1964, Regular Figures (Macmillan, New York).
- Feynman, R. P., and M. Cohen, 1956, “Energy spectrum of the excitations in liquid helium,” Phys. Rev. 102, 1189–1204.
- Fisher, M. E., and B. U. Felderhof, 1970, “Phase transitions in one-dimensional cluster-interaction fluids,” Ann. Phys. 58, 176–216.
- Florian, A., 1960, “Ausfüllung der ebene durch kreise,” Rend. Circ. Mat. Palermo 1, 1–13.
- Frenkel, D., and J. F. Maguire, 1983, “Molecular dynamics study of the dynamical properties of an assembly of infinitely thin hard rods,” Mol. Phys. 49, 503–541.
- Frenkel, D., B. M. Mulder, and J. P. McTague, 1984, “Phase diagram of a system of hard ellipsoids,” Phys. Rev. Lett. 52, 287–290.
- Frisch, H. L., and J. K. Percus, 1999, “High dimensionality as an organizing device for classical fluids,” Phys. Rev. E 60, 2942–2948.
- Gallavotti, G., 1999, Statistical Mechanics (Springer-Verlag, New York).
- Gao, G.-J., J. Blawzdziewicz, and C. S. O’Hern, 2006, “Understanding the frequency distribution of mechanically stable disk packings,” Phys. Rev. E 74, 061304.
- Gardner, M., 2001, The Colossal Book of Mathematics: Classic Puzzles, Paradoxes, and Problems (Norton, New York).
- Gauss, C. F., 1831, “Besprechung des Buchs von L. A. Seeber: Untersuchungen über die eigenschaften der positiven ternären quadratischen formen,” Göttingsche Gelehrte Anzeigen, July 9, p. 1065; see also J. Reine Angew. Math. 20, 312–320 (1840).
- Gevertz, J. L., and S. Torquato, 2008, “A novel three-phase model of brain tissue microstructure,” PLOS Comput. Biol. 4, e100052.
- Goldberg, M., 1967, “Viruses and a mathematical problem,” J. Mol. Biol. 24, 337–338.
- Gotoh, K., and J. L. Finney, 1974, “Statistical geometrical approach to random packing density of equal spheres,” Nature (London) 252, 202–205.
- Haji-Akbari, A., M. Engel, A. S. Keys, X. Zheng, R. G. Petschek, P. Palffy-Muhoray, and S. C. Glotzer, 2009, “Disordered, quasicrystalline, and crystalline phases of densely packed tetrahedra,” Nature (London) 462, 773–777.
- Hales, T. C., 2005, “A proof of the Kepler conjecture,” Ann. Math. 162, 1065–1185.
- Hansen, J. P., and I. R. McDonald, 1986, Theory of Simple Liquids (Academic, New York).
- Hardin, D. P., and E. B. Saff, 2004, “Discretizing manifolds via minimum energy points,” Not. Am. Math. Soc. 51, 1186–1194.
- Henderson, S. I., T. C. Mortensen, S. M. Underwood, and W. van Megen, 1996, “Effect of particle size distribution on crystallization and the glass transition of hard sphere colloids,” Physica A 233, 102–116.
- Herrmann, H. J., G. Mantica, and D. Bessis, 1990, “Space-filling bearings,” Phys. Rev. Lett. 65, 3223–3326.
- Hopkins, A. B., F. H. Stillinger, and S. Torquato, 2009, “Dense sphere packings from optimized correlation functions,” Phys. Rev. E 79, 031123.
- Hopkins, A. B., F. H. Stillinger, and S. Torquato, 2010a, “Densest local sphere-packing diversity: General concepts and application to two dimensions,” Phys. Rev. E 81, 041305.
- Hopkins, A. B., F. H. Stillinger, and S. Torquato, 2010b, “Spherical codes, maximal local packing density, and the golden ratio,” J. Math. Phys. 51, 043302.
- Hudson, T. S., and P. Harrowell, 2008, “Dense packings of hard spheres of different sizes based on filling interstices in uniform three-dimensional tilings,” J. Phys. Chem. B 112, 8139–8143.
- Jaoshvili, A., A. Esakia, M. Porrati, and P. M. Chaikin, 2010, “Experiments on the random packing of tetrahedral dice,” Phys. Rev. Lett. 104, 185501.
- Jiao, Y., F. H. Stillinger, and S. Torquato, 2008, “Optimal packings of superdisks and the role of symmetry,” Phys. Rev. Lett. 100, 245504.
- Jiao, Y., F. H. Stillinger, and S. Torquato, 2009, “Optimal packings of superballs,” Phys. Rev. E 79, 041309.
- Jiao, Y., F. H. Stillinger, and S. Torquato, 2010a, “Distinctive features arising in maximally random jammed packings of superballs,” Phys. Rev. E 81, 041304.
- Jiao, Y., F. H. Stillinger, and S. Torquato, 2010b, “Non-universality of density and disorder in jammed hard-sphere packings,” unpublished.
- Jodrey, W. S., and E. M. Tory, 1985, “Computer simulation of close random packing of equal spheres,” Phys. Rev. A 32, 2347–2351.
- Jullien, R., J.-F. Sadoc, and R. Mosseri, 1997, “Packing at random in curved space and frustration: A numerical study,” J. Phys. I 7, 1677–1692.
- Kabatiansky, G. A., and V. I. Levenshtein, 1978, “Bounds for packings on a sphere and in space,” Probl. Inf. Transm. 14, 1–17.
- Kallus, Y., V. Elser, and S. Gravel, 2010, “A dense periodic packing of tetrahedra with a small repeating unit,” Discrete Comput. Geom. 44, 245–252.
- Kamien, R. D., and A. J. Liu, 2007, “Why is random close packing reproducible?,” Phys. Rev. Lett. 99, 155501.
- Kansal, A. R., S. Torquato, and F. H. Stillinger, 2002a, “Computer generation of dense polydisperse sphere packing,” J. Chem. Phys. 117, 8212–8218.
- Kansal, A. R., S. Torquato, and F. H. Stillinger, 2002b, “Diversity of order and densities in jammed hard-particle packings,” Phys. Rev. E 66, 041109.
- Kansal, A. R., T. M. Truskett, and S. Torquato, 2000, “Nonequilibrium hard-disk packings with controlled orientational order,” J. Chem. Phys. 113, 4844–4851.
- Kerstein, A. R., 1987, “Percolation model of polydisperse composite solid propellant combustion,” Combust. Flame 69, 95–112.
- Levenshtein, V. I., 1979, “On bounds for packings in -dimensional Euclidean space,” Sov. Math. Dokl. 20, 417–421.
- Likos, C. N., and C. L. Henley, 1993, “Complex alloy phases for binary hard-disk mixtures,” Philos. Mag. B 68, 85–113.
- Liu, A. J., and S. R. Nagel, 1998, “Jamming is not just cool anymore,” Nature (London) 396, 21–22.
- Lubachevsky, B. D., and F. H. Stillinger, 1990, “Geometric properties of random disk packings,” J. Stat. Phys. 60, 561–583.
- Lue, L., M. Bishop, and P. A. Whitlock, 2010, “The fluid to solid phase transition of hard hyperspheres in four and five dimensions,” J. Chem. Phys. 132, 104509.
- Mailman, M., C. F. Schreck, C. S. O’Hern, and B. Chakraborty, 2009, “Jamming in systems composed of frictionless ellipse-shaped particles,” Phys. Rev. Lett. 102, 255501.
- Makse, H. A., and J. Kurchan, 2002, “Testing the thermodynamic approach to granular matter with a numerical model of a decisive experiment,” Nature (London) 415, 614–617.
- Man, W., A. Donev, F. H. Stillinger, M. Sullivan, W. B. Russel, D. Heeger, S. Inati, S. Torquato, and P. M. Chaikin, 2005, “Experiments on random packing of ellipsoids,” Phys. Rev. Lett. 94, 198001.
- Mari, R., F. Krzakala, and J. Kurchan, 2009, “Jamming versus glass transitions,” Phys. Rev. Lett. 103, 025701.
- Matérn, B., 1986, Lecture Notes in Statistics, 2nd ed. (Springer-Verlag, New York), Vol. 36.
- Mau, S. C., and D. A. Huse, 1999, “Stacking entropy of hard-sphere crystals,” Phys. Rev. E 59, 4396–4401.
- Mayer, J. E., and M. G. Mayer, 1940, Statistical Mechanics (Wiley, New York).
- Minkowski, H., 1905, “Diskontinuitätsbereich für arithmetische äquivalenz,” J. Reine Angew. Math. 129, 220–274.
- Modes, C. D., and R. D. Kamien, 2007, “Hard discs on the hyperbolic plane,” Phys. Rev. Lett. 99, 235701.
- Moukarzel, C. F., 1998, “Isostatic phase transition and instability in stiff granular materials,” Phys. Rev. Lett. 81, 1634–1637.
- Musin, O. R., 2008, “The kissing number in four dimensions,” Ann. Math. 168, 1–32.
- Nisoli, C., N. M. Gabor, P. E. Lammert, J. D. Maynard, and V. H. Crespi, 2010, “Annealing a magnetic cactus into phyllotaxis,” Phys. Rev. E 81, 046107.
- Noya, E. G., C. Vega, and E. de Miguel, 2008, “Determination of the melting point of hard spheres from direct coexistence simulation methods,” J. Chem. Phys. 128, 154507.
- Odlyzko, A. M., and N. J. A. Sloane, 1979, “New bounds on the number of unit spheres that can touch a unit sphere in dimensions,” J. Comb. Theory, Ser. A 26, 210–214.
- O’Hern, C. S., S. A. Langer, A. J. Liu, and S. R. Nagel, 2002, “Random packings of frictionless particles,” Phys. Rev. Lett. 88, 075507.
- O’Hern, C. S., L. E. Silbert, A. J. Liu, and S. R. Nagel, 2003, “Jamming at zero temperature and zero applied stress: The epitome of disorder,” Phys. Rev. E 68, 011306.
- Okubo, T., and T. Odagaki, 2004, “Random packing of binary hard discs,” J. Phys.: Condens. Matter 16, 6651–6559.
- Onsager, L., 1944, “Crystal statistics: I. A two-dimensional model with an order-disorder transition,” Phys. Rev. 65, 117–149.
- Parisi, G., and F. Slanina, 2000, “Toy model for the mean-field theory of hard-sphere liquids,” Phys. Rev. E 62, 6554–6559.
- Parisi, G., and F. Zamponi, 2005, “The ideal glass transition of hard spheres,” J. Chem. Phys. 123, 144501.
- Parisi, G., and F. Zamponi, 2006, “Amorphous packings of hard spheres for large space dimension,” J. Stat. Mech. 2006, P03017.
- Parisi, G., and F. Zamponi, 2010, “Mean field theory of hard sphere glasses and jamming,” Rev. Mod. Phys. 82, 789–845.
- Peebles, P. J. E., 1993, Principles of Physical Cosmology (Princeton University Press, Princeton, NJ).
- Pouliquen, O., M. Nicolas, and P. D. Weidman, 1997, “Crystallization of non-Brownian spheres under horizontal shaking,” Phys. Rev. Lett. 79, 3640–3643.
- Prusinkiewicz, P., and A. Lindenmayer, 1990, The Algorithmic Beauty of Plants (Springer-Verlag, New York).
- Rahaman, M. N., 1995, Ceramic Processing and Sintering (Dekker, New York).
- Reatto, L., and G. V. Chester, 1967, “Phonons and the properties of a Bose system,” Phys. Rev. 155, 88–100.
- Reinhardt, K., 1934, “Über die dichteste gitterfrmige Lagerung kongruente Bereiche in der Ebene und eine besondere Art konvexer Kurven,” Abh. Math. Semin. Univ. Hambg. 10, 216–230.
- Rintoul, M. D., and S. Torquato, 1996a, “Computer simulations of dense hard-sphere systems,” J. Chem. Phys. 105, 9258–9265; 107, 2698(E) (1997).
- Rintoul, M. D., and S. Torquato, 1996b, “Metastability and crystallization in hard-sphere systems,” Phys. Rev. Lett. 77, 4198–4201.
- Rogers, C. A., 1958, “The packing of equal spheres,” Proc. London Math. Soc. 8, 609–620.
- Rogers, C. A., 1964, Packing and Covering (Cambridge University Press, Cambridge, England).
- Rohrmann, R. D., and A. Santos, 2007, “Structure of hard-hypersphere fluids in odd dimensions,” Phys. Rev. E 76, 051202.
- Roux, J. N., 2000, “Geometric origin of mechanical properties of granular materials,” Phys. Rev. E 61, 6802–6836.
- Ruelle, D., 1999, Statistical Mechanics: Rigorous Results (World Scientific, Riveredge, NJ).
- Russel, W. B., D. A. Saville, and W. R. Schowalter, 1989, Colloidal Dispersions (Cambridge University Press, Cambridge, England).
- Salsburg, Z. W., and W. W. Wood, 1962, “Equation of state of classical hard spheres at high density,” J. Chem. Phys. 37, 798–1025.
- Scardicchio, A., F. H. Stillinger, and S. Torquato, 2008, “Estimates of the optimal density of sphere packings in high dimensions,” J. Math. Phys. 49, 043301.
- Scardicchio, A., C. E. Zachary, and S. Torquato, 2009, “Statistical properties of determinantal point processes in high-dimensional Euclidean spaces,” Phys. Rev. E 79, 041108.
- Schaertl, W., and H. Sillescu, 1994, “Brownian dynamics of colloidal hard spheres: Equilibrium structures and random close packings,” J. Stat. Phys. 77, 1007–1025.
- Scheidegger, A. E., 1974, The Physics of Flow Through Porous Media (University of Toronto Press, Toronto).
- Schüette, K., and B. L. van der Waerden, 1951, “Auf welcher Kugel haben 5, 6, 7, 8 oder 9 Punkte mit Mindestabstand Eins Platz?,” Math. Ann. 123, 96–124.
- Schulz, G. V., 1939, “Über die kinetik der kettenpolymerisationen,” Z. Phys. Chem. B43, 25–46.
- Scott, G. D., and D. M. Kilgour, 1969, “The density of random close packing of spheres,” Br. J. Appl. Phys. 2, 863–866.
- Shannon, C. E., 1948, “A mathematical theory of communication,” Bell Syst. Tech. J. 27, 379–423; 27, 623–656 (1948).
- Silbert, L. E., D. Ertas, G. S. Grest, T. C. Halsey, and D. Levine, 2002, “Geometry of frictionless and frictional sphere packings,” Phys. Rev. E 65, 031304.
- Silbert, L. E., A. J. Liu, and S. R. Nagel, 2005, “Vibrations and diverging length scales near the unjamming transition,” Phys. Rev. Lett. 95, 098301.
- Skoge, M., A. Donev, F. H. Stillinger, and S. Torquato, 2006, “Packing hyperspheres in high-dimensional Euclidean spaces,” Phys. Rev. E 74, 041127.
- Song, C., P. Wang, and H. A. Makse, 2008, “A phase diagram for jammed matter,” Nature (London) 453, 629–632.
- Speedy, R. J., 1994, “On the reproducibility of glasses,” J. Chem. Phys. 100, 6684–6691.
- Stachurski, Z. H., 2003, “Definition and properties of ideal amorphous solids,” Phys. Rev. Lett. 90, 155502.
- Steinhardt, P. J., D. R. Nelson, and M. Ronchetti, 1983, “Bond-orientational order in liquids and glasses,” Phys. Rev. B 28, 784–805.
- Stillinger, F. H., E. A. DiMarzio, and R. L. Kornegay, 1964, “Systematic approach to explanation of the rigid-disk phase transition,” J. Chem. Phys. 40, 1564–1576.
- Stillinger, F. H., and Z. W. Salsburg, 1969, “Limiting polytope geometry for rigid rods, disks, and spheres,” J. Stat. Phys. 1, 179–225.
- Stillinger, F. H., S. Torquato, and H. Sakai, 2003, “Lattice-based random jammed configurations for hard particles,” Phys. Rev. E 67, 031107.
- Tammes, P. M. L., 1930, “On the origin of number and arrangement of the places of exit on the surface of pollen-grains,” Recl. Tra. Botaniques Nérlandais 27, 1–84.
- Tanemura, M., and M. Hasegawa, 1980, “Geometrical models for territory. I. Models for synchronous and asynchronous settlement of territories,” J. Theor. Biol. 82, 477–496.
- Tobochnik, J., and P. M. Chapin, 1988, “Monte Carlo simulation of hard spheres near random closest packing using spherical boundary conditions,” J. Chem. Phys. 88, 5824–5830.
- Torquato, S., 1995a, “Mean nearest-neighbor distance in random packings of hard -dimensional spheres,” Phys. Rev. Lett. 74, 2156–2159.
- Torquato, S., 1995b, “Nearest-neighbor statistics for packings of hard spheres and disks,” Phys. Rev. E 51, 3170–3182.
- Torquato, S., 2002, Random Heterogeneous Materials: Microstructure and Macroscopic Properties (Springer-Verlag, New York).
- Torquato, S., 2006, “Necessary conditions on realizable two-point correlation functions of random media,” Ind. Eng. Chem. Res. 45, 6923–6298.
- Torquato, S., 2009, “Inverse optimization techniques for targeted self-assembly,” Soft Matter 5, 1157–1173.
- Torquato, S., A. Donev, and F. H. Stillinger, 2003, “Breakdown of elasticity theory for jammed hard-particle packings: Conical nonlinear constitutive theory,” Int. J. Solids Struct. 40, 7143–7153.
- Torquato, S., S. Hyun, and A. Donev, 2002, “Multifunctional composites: Optimizing microstructures for simultaneous transport of heat and electricity,” Phys. Rev. Lett. 89, 266601.
- Torquato, S., and Y. Jiao, 2009a, “Dense packings of the Platonic and Archimedean solids,” Nature (London) 460, 876–881.
- Torquato, S., and Y. Jiao, 2009b, “Dense polyhedral packings: Platonic and Archimedean solids,” Phys. Rev. E 80, 041104.
- Torquato, S., and Y. Jiao, 2010a, “Analytical constructions of a family of dense tetrahedron packings and the role of symmetry,” e-print arXiv:0912.4210.
- Torquato, S., and Y. Jiao, 2010b, “Exact constructions of a family of dense periodic packings of tetrahedra,” Phys. Rev. E 81, 041310.
- Torquato, S., and Y. Jiao, 2010c, “Robust algorithm to generate a diverse class of dense disordered and ordered sphere packings via linear programming,” e-print arXiv:1008.2747.
- Torquato, S., A. Scardicchio, and C. E. Zachary, 2008, “Point processes in arbitrary dimension from fermionic gases, random matrix theory, and number theory,” J. Stat. Mech.: Theory Exp. 2008, P11019.
- Torquato, S., and F. H. Stillinger, 2001, “Multiplicity of generation, selection, and classification procedures for jammed hard-particle packings,” J. Phys. Chem. B 105, 11849–11853.
- Torquato, S., and F. H. Stillinger, 2002, “Controlling the short-range order and packing densities of many-particle systems,” J. Phys. Chem. B 106, 8354–8359; 106, 11406(E) (2002).
- Torquato, S., and F. H. Stillinger, 2003, “Local density fluctuations, hyperuniform systems, and order metrics,” Phys. Rev. E 68, 041113.
- Torquato, S., and F. H. Stillinger, 2006a, “Exactly solvable disordered sphere-packing model in arbitrary-dimensional euclidean spaces,” Phys. Rev. E 73, 031106.
- Torquato, S., and F. H. Stillinger, 2006b, “New conjectural lower bounds on the optimal density of sphere packings,” Exp. Math. 15, 307–331.
- Torquato, S., and F. H. Stillinger, 2007, “Toward the jamming threshold of sphere packings: Tunneled crystals,” J. Appl. Phys. 102, 093511; 103, 129902(E) (2008).
- Torquato, S., T. M. Truskett, and P. G. Debenedetti, 2000, “Is random close packing of spheres well defined?,” Phys. Rev. Lett. 84, 2064–2067.
- Torquato, S., O. U. Uche, and F. H. Stillinger, 2006, “Random sequential addition of hard spheres in high Euclidean dimensions,” Phys. Rev. E 74, 061308.
- Truskett, T. M., S. Torquato, and P. G. Debenedetti, 2000, “Towards a quantification of disorder in materials: Distinguishing equilibrium and glassy sphere packings,” Phys. Rev. E 62, 993–1001.
- Uche, O. U., F. H. Stillinger, and S. Torquato, 2004, “Concerning maximal packing arrangements of binary disk mixtures,” Physica A 342, 428–446.
- Uche, O. U., F. H. Stillinger, and S. Torquato, 2006, “On the realizability of pair correlation functions,” Physica A 360, 21–36.
- Vance, S. I., 2009, “Lattices and sphere packings in Euclidean space,” Ph.D. thesis (University of Washington).
- van Meel, J. A., B. Charbonneau, A. Fortini, and P. Charbonneau, 2009, “Hard sphere crystallization gets rarer with increasing dimension,” Phys. Rev. E 80, 061110.
- van Meel, J. A., D. Frenkel, and P. Charbonneau, 2009, “Geometrical frustration: A study of four-dimensional hard spheres,” Phys. Rev. E 79, 030201.
- Viot, P., G. Tarjus, and J. Talbot, 1993, “Exact solution of a generalized ballistic-deposition model,” Phys. Rev. E 48, 480–488.
- Visscher, and M. Bolsterli, 1972, “Random packing of equal and unequal spheres in two and three dimensions,” Nature (London) 239, 504–507.
- Weeks, J. D., D. Chandler, and H. C. Andersen, 1971, “Role of repulsive forces in determining the equilibrium structure of simple liquids,” J. Chem. Phys. 54, 5237–5247.
- Widom, B., 1966, “Random sequential addition of hard spheres to a volume,” J. Chem. Phys. 44, 3888–3894.
- Williams, S. R., and A. P. Philipse, 2003, “Random packings of spheres and spherocylinders simulated by mechanical contraction,” Phys. Rev. E 67, 051301.
- Woodcock, L. V., and C. A. Angell, 1981, “Diffusivity of the hard-sphere model in the region of fluid metastability,” Phys. Rev. Lett. 47, 1129–1132.
- Wyart, M., L. E. Silbert, S. R. Nagel, and T. A. Witten, 2005, “Effects of compression on the vibrational modes of marginally jammed solids,” Phys. Rev. E 72, 051306.
- Yatsenko, G., and K. S. Schweizer, 2008, “Glassy dynamics and kinetic vitrification of isotropic suspensions of hard rods,” Langmuir 24, 7474–7484.
- Zachary, C. E., Y. Jiao, and S. Torquato, 2010, “Hyperuniform long-range correlations are a signature of disordered jammed hard-particle packings,” e-print arXiv:1008.2548.
- Zachary, C. E., and S. Torquato, 2009, “Hyperuniformity in point patterns and two-phase heterogeneous media,” J. Stat. Mech.: Theory Exp. 2009, P12015.
- Zallen, R., 1983, The Physics of Amorphous Solids (Wiley, New York).
- Zandi, R., D. Reguera, R. F. Bruinsma, W. M. Gelbart, and J. Rudnick, 2004, “Origin of icosahedral symmetry in viruses,” Proc. Natl. Acad. Sci. U.S.A. 101, 15556–15560.
- Zeravcic, Z., N. Xu, A. J. Liu, S. R. Nagel, and W. van Saarloos, 2009, “Excitations of ellipsoid packings near jamming,” EPL 87, 26001.
- Zinchenko, A. Z., 1994, “Algorithm for random close packing of spheres with periodic boundary conditions,” J. Comput. Phys. 114, 298–307.