We study nonequilibrium thermodynamics of complex information flows induced by interactions between multiple fluctuating systems. Characterizing nonequilibrium dynamics by causal networks (i.e., Bayesian networks), we obtain novel generalizations of the second law of thermodynamics and the fluctuation theorem, which include an informational quantity characterized by the topology of the causal network. Our result implies that the entropy production in a single system in the presence of multiple other systems is bounded by the information flow between these systems. We demonstrate our general result by a simple model of biochemical adaptation.
Information thermodynamics on causal networks.
Published 2013 in Physical Review Letters
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- Publication year
2013
- Venue
Physical Review Letters
- Publication date
2013-06-12
- Fields of study
Mathematics, Physics, Medicine
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Semantic Scholar, PubMed
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