Spontaneous fine-tuning to environment in many-species chemical reaction networks
Author(s)
Horowitz, Jordan M.; England, Jeremy L.
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A chemical mixture that continually absorbs work from its environment may exhibit steady-state chemical concentrations that deviate from their equilibrium values. Such behavior is particularly interesting in a scenario where the environmental work sources are relatively difficult to access, so that only the proper orchestration of many distinct catalytic actors can power the dissipative flux required to maintain a stable, far-from-equilibrium steady state. In this article, we study the dynamics of an in silico chemical network with random connectivity in an environment that makes strong thermodynamic forcing available only to rare combinations of chemical concentrations. We find that the long-time dynamics of such systems are biased toward states that exhibit a fine-tuned extremization of environmental forcing. Keywords: nonequilibrium thermodynamics; adaptation; chemical reaction networks; self-organization; energy seeking
Date issued
2017-07Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Proceedings of the National Academy of Sciences
Publisher
National Academy of Sciences (U.S.)
Citation
Horowitz, Jordan M., and Jeremy L. England. “Spontaneous Fine-Tuning to Environment in Many-Species Chemical Reaction Networks.” Proceedings of the National Academy of Sciences 114, 29 (July 2017): 7565–7570 © 2017 National Academy of Sciences
Version: Final published version
ISSN
0027-8424
1091-6490