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Article Dans Une Revue Communications Chemistry Année : 2021

Dissipation-driven selection of states in non-equilibrium chemical networks

Résumé

Abstract Life has most likely originated as a consequence of processes taking place in non-equilibrium conditions (e.g. in the proximity of deep-sea thermal vents) selecting states of matter that would have been otherwise unfavorable at equilibrium. Here we present a simple chemical network in which the selection of states is driven by the thermodynamic necessity of dissipating heat as rapidly as possible in the presence of a thermal gradient: states participating to faster reactions contribute the most to the dissipation rate, and are the most populated ones in non-equilibrium steady-state conditions. Building upon these results, we show that, as the complexity of the chemical network increases, the velocity of the reaction path leading to a given state determines its selection, giving rise to non-trivial localization phenomena in state space. A byproduct of our studies is that, in the presence of a temperature gradient, thermophoresis-like behavior inevitably appears depending on the transport properties of each individual state, thus hinting at a possible microscopic explanation of this intriguing yet still not fully understood phenomenon.

Dates et versions

hal-03339417 , version 1 (09-09-2021)

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Daniel Maria Busiello, Shiling Liang, Francesco Piazza, Paolo de Los Rios. Dissipation-driven selection of states in non-equilibrium chemical networks. Communications Chemistry, 2021, 4 (1), pp.16. ⟨10.1038/s42004-021-00454-w⟩. ⟨hal-03339417⟩
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