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A spin-glass model of chemical evolution

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  • Peliti, Luca

Abstract

A model of reproducing protopolynucleotides, exhibiting Darwinian evolution, is introduced. Molecules replicate, undergo random mutations, and are selected according to a spin-glass-like fitness function. The simple case of a constant fitness function is solved exactly. The analogy between population averages in the model and thermal averages in spin glasses is highlighted, and the relevance of fluctuations of population averages is discussed. The main features of the evolutionary behavior of a molecular population undergoing natural selection are sketched.

Suggested Citation

  • Peliti, Luca, 1990. "A spin-glass model of chemical evolution," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 168(1), pages 619-625.
    • Handle: RePEc:eee:phsmap:v:168:y:1990:i:1:p:619-625
    DOI: 10.1016/0378-4371(90)90414-N
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    Cited by:

    1. W. Fontana & L.W. Buss, 1996. "The Barrier of Objects: From Dynamical Systems to Bounded Organizations," Working Papers wp96027, International Institute for Applied Systems Analysis.

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