Probing the pair structure of supercooled fluids by integral equations: Evidence for an equilibrium liquid-ideal glass transition?

Abstract : We solve the hypernetted-chain (HNC) and Rogers-Young (RY) integral equations for the pair structure of a system of two weakly coupled replicae of a soft-sphere fluid, in order to detect signatures of an equilibrium transition to an ``ideal glass''. Both integral equations predict, in addition to the supercooled-liquid branch, the appearance of a new disordered state characterized by different pair correlations, over a range of temperatures. The ideal-glass transition temperature T-DJ, identified by a discontinuous jump in the inter-replica pair correlation function, is predicted to be substantially higher with RY compared to HNC theory. The internal energy is predicted to undergo a weak discontinuity at T-DJ.
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EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2014, 105 (3), 〈10.1209/0295-5075/105/36003〉
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Soumis le : mardi 2 mai 2017 - 14:04:00
Dernière modification le : mercredi 29 novembre 2017 - 09:27:14

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Jean-Marc Bomont, Giorgio Pastore, Jean-Pierre Hansen. Probing the pair structure of supercooled fluids by integral equations: Evidence for an equilibrium liquid-ideal glass transition?. EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2014, 105 (3), 〈10.1209/0295-5075/105/36003〉. 〈hal-01516910〉

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