Northwestern University

Thu 2:00 PM

Professor Paul Chaikin: Quantifying hidden order out of equilibrium


When: Thursday, May 31, 2018
2:00 PM - 3:30 PM  

Where: Technological Institute, F160, 2145 Sheridan Road, Evanston, IL 60208 map it

Audience: Faculty/Staff - Student - Public - Post Docs/Docs - Graduate Students

Contact: Cristian Pennington   847.491.3645

Group: Physics and Astronomy Complex Systems Seminars

Category: Academic


Professor Paul Chaikin, New York University

Title: Quantifying hidden order out of equilibrium

Abstract: While the equilibrium properties, states, and phase transitions of interacting systems are well described by statistical mechanics, the lack of suitable state parameters has hindered the understanding of non-equilibrium phenomena in divers settings, from glasses to driven systems to biology. Here we introduce a simple idea enabling the quantification of organization in non-equilibrium and equilibrium systems, even when the form of order is unknown. The length of a losslessly compressed data file is a direct measure of its information content. Here we use lossless data compression to study several out-of-equilibrium systems, and show that it both identifies ordering and reveals critical behavior in dynamical phase transitions. Our technique should provide a quantitative measure of organization in systems ranging from condensed matter systems in and out of equilibrium, to cosmology, biology and possibly economic and social systems.

Host: Michelle Driscoll

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