Abstract
We express the Crow-Kimura and Eigen models of quasispecies theory in a functional integral representation. We formulate the spin coherent state functional integrals using the Schwinger Boson method. In this formulation, we are able to deduce the long-time behavior of these models for arbitrary replication and degradation functions. We discuss the phase transitions that occur in these models as a function of mutation rate. We derive for these models the leading order corrections to the infinite genome length limit.
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Park, JM., Deem, M.W. Schwinger Boson Formulation and Solution of the Crow-Kimura and Eigen Models of Quasispecies Theory. J Stat Phys 125, 971–1011 (2006). https://doi.org/10.1007/s10955-006-9190-z
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DOI: https://doi.org/10.1007/s10955-006-9190-z