How Do Glassy Domains Grow?

Nandi, Saroj Kumar and Ramaswamy, Sriram (2012) How Do Glassy Domains Grow? In: PHYSICAL REVIEW LETTERS, 109 (11).

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Abstract

We construct equations for the growth kinetics of structural glass within mode-coupling theory, through a nonstationary variant of the three-density correlator defined by G. Biroli et al. Phys. Rev. Lett. 97, 195701 (2006)]. We solve a schematic form of the resulting equations to obtain the coarsening of the three-point correlator chi(3)(t, t(w)) as a function of waiting time tw. For a quench into the glass, we find that chi(3) attains a peak value similar to t(w)(0.5) at t - t(w) similar to t(w)(0.8), providing a theoretical basis for the numerical observations of Parisi J. Phys. Chem. B 103, 4128 (1999)] and Kob and Barrat Phys. Rev. Lett. 78, 4581 (1997)]. The aging is not ``simple'': the t(w) dependence cannot be attributed to an evolving effective temperature.

Item Type:	Journal Article
Publication:	PHYSICAL REVIEW LETTERS
Publisher:	AMER PHYSICAL SOC
Additional Information:	Copyright for this article belongs to the American Physical Society
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	11 Jan 2013 09:13
Last Modified:	11 Jan 2013 09:13
URI:	http://eprints.iisc.ac.in/id/eprint/45273

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