SFI: ‘Real-Space Condensation In Mass Transport Models…’ Dec. 8

Ori Hirschberg, Weizmann Institute of Science
 
SFI News:
 
The Santa Fe Institute (SFI) holds seminar “Real-Space Condensation in Mass Transport Models: Statics, Dynamics, and Large Deviations” at 3:30 p.m., Tuesday Dec. 8, at Collins Conference Room in Santa Fe.
 
Abstract: The formation of traffic jams on highways, the clustering of particles in shaken granular gases, and the emergence of macroscopically-linked hubs in complex networks are all examples of real-space condensation.
 
This phase transition, in which a finite fraction of the “mass” in a macroscopic system is concentrated in a microscopic fraction of its volume, is rather ubiquitous in nonequilibrium systems.
 
In this talk, I shall present some of the insights into these phenomena garnered from the study of prototypical toy models.
 
After reviewing static properties of the condensation transition, I shall focus on two unexpected features recently discovered:
 
(1) Spatial correlations, which generically exist in driven systems, may give rise to a collective motion of the condensate through the system. The mechanism behind this motion is explained using simplified models, and shown to be rather generic.
 
(2) When the current flowing through a system is conditioned to have highly atypical values, condensates may form in systems that otherwise do not condense. I will present microscopic and macroscopic approaches to analyze this novel scenario of condensation.
 
SFI Host: Cris Moore
 
Click here to view the online event listing.
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