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Landau-like theory of glassy dynamics

DSpace at IIT Bombay

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Title Landau-like theory of glassy dynamics
 
Creator MAJUMDAR, SN
DAS, D
KONDEV, J
CHAKRABORTY, B
 
Subject kinetically constrained models
relaxation
 
Description An exact solution of a Landau model of an order-disorder transition with activated critical dynamics is presented. The model describes a funnel-shaped topology of the order parameter space in which the number of energy lowering trajectories rapidly diminishes as the ordered ground state is approached. This leads to an asymmetry in the effective transition rates which results in a nonexponential relaxation of the order-parameter fluctuations and a Vogel-Fulcher-Tammann divergence of the relaxation times, typical of a glass transition. We argue that the Landau model provides a general framework for studying glassy dynamics in a variety of systems.
 
Publisher AMERICAN PHYSICAL SOC
 
Date 2011-07-17T15:33:50Z
2011-12-26T12:50:22Z
2011-12-27T05:49:57Z
2011-07-17T15:33:50Z
2011-12-26T12:50:22Z
2011-12-27T05:49:57Z
2004
 
Type Article
 
Identifier PHYSICAL REVIEW E, 70(6), -
1063-651X
http://dx.doi.org/10.1103/PhysRevE.70.060501
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4771
http://hdl.handle.net/10054/4771
 
Language en