Rigidity in Condensed Matter and its Origin in Configurational Constraint

Shibu Saw; Peter Harrowell

doi:10.1103/physrevlett.116.137801

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arXiv · 1602.00184

Rigidity in Condensed Matter and its Origin in Configurational Constraint

Shibu Saw·Peter Harrowell

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Abstract

Motivated by the formal argument that a non-zero shear modulus is the result of averaging over a constrained configurations space, we demonstrate that the shear modulus calculated over a range of temperatures and averaging times can be expressed (relative to its infinite frequency value) as a single function of the mean squared displacement. This result is shown to hold for both a glass-liquid and a crystal-liquid system.

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Shibu Saw, Peter Harrowell. 2016-03-16. Rigidity in Condensed Matter and its Origin in Configurational Constraint. https://doi.org/10.1103/physrevlett.116.137801

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