Spontaneous fine-tuning to environment in many-species chemical reaction networks
Name
7565.full.pdf
Size
1.44 MB
Format
Adobe PDF
Checksum (MD5)
ac367c079ec75ea01dac034a85dfbeea
Author(s)
Horowitz, Jordan M.
England, Jeremy L.
Date Issued
July 2017
Journal
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
Abstract
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
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1073/PNAS.1700617114
