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Universal Nature of Particle Displacements close to Glass and Jamming Transitions
2007
Physical Review Letters
We examine the structure of the distribution of single particle displacements (van-Hove function) in a broad class of materials close to glass and jamming transitions. In a wide time window comprising structural relaxation, van-Hove functions reflect the coexistence of slow and fast particles (dynamic heterogeneity). The tails of the distributions exhibit exponential, rather than Gaussian, decay. We argue that this behavior is universal in glassy materials and should be considered the analog,
doi:10.1103/physrevlett.99.060604
pmid:17930812
fatcat:yeq77yk6xbdyxpjnuyom7timwi