AN EVOLUTIONARY VERSION OF THE RANDOM ENERGY-MODEL

Authors
FRANZ S PELITI L SELLITTO M
Citation
S. Franz et al., AN EVOLUTIONARY VERSION OF THE RANDOM ENERGY-MODEL, Journal of physics. A, mathematical and general, 26(23), 1993, pp. 1195-1199
Citations number
10
Categorie Soggetti
Physics
Journal title
Journal of physics. A, mathematical and general → ACNP
ISSN journal
03054470
Volume
26
Issue
23
Year of publication
1993
Pages
1195 - 1199
Database
ISI
SICI code
0305-4470(1993)26:23<1195:AEVOTR>2.0.ZU;2-2
Abstract
We consider Eigen's quasispecies model of molecular evolution in the c ase in which the reproduction rates of different molecular species are quenched independent random variables. We show, by analogy with the r andom energy model, the existence of two phases: a 'neutral' phase, wh ere no adaptation effects are exhibited, and a (pathological) 'adapted ' phase, where the population is made of identical, optimally adapted molecules, and does not evolve.