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arXiv · 1110.6068

Quantifying reversibility in a phase-separating lattice gas: an analogy with self-assembly

James Grant·Robert L. Jack
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Abstract

We present dynamic measurements of a lattice gas during phase separation, which we use as an analogy for self-assembly of equilibrium ordered structures. We use two approaches to quantify the degree of 'reversibility' of this process: firstly, we count events in which bonds are made and broken; secondly, we use correlation-response measurements and fluctuation-dissipation ratios to probe reversibility during different time intervals. We show how correlation and response functions can be related directly to microscopic (ir)reversibility and we discuss time-dependence and observable- dependence of these measurements, including the role of fast and slow degrees of freedom during assembly.

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James Grant, Robert L. Jack. 2012-01-13. Quantifying reversibility in a phase-separating lattice gas: an analogy with self-assembly. https://doi.org/10.1103/physreve.85.021112

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