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Time dependent stretching of aging dynamics in a generalized hydrodynamic model for supercooled liquids
Bhaskar Sen Gupta1, Shankar P Das
1School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
Abstract:
The nonequilibrium dynamics and aging behavior of a supercooled liquid is investigated from an analysis of the correlation of density fluctuations at two different times. The dynamic correlation functions are computed by solving numerically the equations of nonlinear fluctuating hydrodynamics. The aging time dependence follows a modified stretched exponential form with a relaxation time which is dependent on the aging time. This is similar to the behavior seen in the aging data of dielectric response functions of a typical glass forming liquid.
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