期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 407, 期 -, 页码 51-56出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnoncrysol.2014.07.039
关键词
Fluctuations; Condensation; Non-equilibrium; Statistical mechanics
Carrying out explicitly the computation in a paradigmatic model of non-interacting systems, the Gaussian model, we show the existence of a singular point in the probability distribution P(M) of an extensive variable M. Interpreting P(M) as a thermodynamic potential of a dual system obtained from the original one by applying a constraint, we discuss how the non-analytical point of P(M) is the counterpart of a phase-transition in the companion system. We show the generality of such mechanism by considering both the system in equilibrium or in non-equilibrium state following a temperature quench. (C) 2014 Elsevier B.V. All rights reserved.
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