Preparation and relaxation of very stable glassy states of a simulated liquid

Robert L Jack, Lester O Hedges, Juan P Garrahan, David Chandler

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We prepare metastable glassy states in a model glass former made of Lennard-Jones particles by sampling biased ensembles of trajectories with low dynamical activity. These trajectories form an inactive dynamical phase whose "fast" vibrational degrees of freedom are maintained at thermal equilibrium by contact with a heat bath, while the "slow" structural degrees of freedom are located in deep valleys of the energy landscape. We examine the relaxation to equilibrium and the vibrational properties of these metastable states. The glassy states we prepare by our trajectory sampling method are very stable to thermal fluctuations and also more mechanically rigid than low-temperature equilibrated configurations.
Original languageEnglish
Article number275702
Number of pages5
JournalPhysical Review Letters
Issue number27
Early online date27 Dec 2011
Publication statusPublished - 30 Dec 2011


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