Energy landscape of a simple model for strong liquids

We calculate the statistical properties of the energy landscape of a minimal model for strong network-forming liquids. Dynamic and thermodynamic properties of this model can be computed with arbitrary precision even at low temperatures. A degenerate disordered ground state and logarithmic statistics...

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Bibliographic Details
Published in:Physical review letters 2005-10, Vol.95 (15), p.157802.1-157802.4, Article 157802
Main Authors: MORENO, A. J, BULDYREV, S. V, LA NAVE, E, SAIKA-VOIVOD, I, SCIORTINO, F, TARTAGLIA, P, ZACCARELLI, E
Format: Article
Language:English
Subjects:
Complex Mixtures - analysis
Complex Mixtures - chemistry
Computer Simulation
Condensed matter: structure, mechanical and thermal properties
Energy Transfer
Exact sciences and technology
Lattice dynamics
Models, Chemical
Phase Transition
Physics
Solutions - analysis
Solutions - chemistry
Structure of liquids
Structure of solids and liquids
crystallography
Temperature
Time-dependent properties
relaxation
Vibrational states in disordered systems
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Summary:We calculate the statistical properties of the energy landscape of a minimal model for strong network-forming liquids. Dynamic and thermodynamic properties of this model can be computed with arbitrary precision even at low temperatures. A degenerate disordered ground state and logarithmic statistics for the local minima energy distribution are the landscape signatures of strong liquid behavior. Differences from fragile liquid properties are attributed to the presence of a discrete energy scale, provided by the particle bonds, and to the intrinsic degeneracy of topologically disordered networks.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.95.157802