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arXiv 1111.5770cond-mat.dis-nnphysics.bio-ph
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绝热自适应演化自旋玻璃模型中的复本对称性破缺

Replica symmetry breaking in an adiabatic spin-glass model of adaptive evolution

Ayaka Sakata, Koji Hukushima, Kunihiko Kaneko

摘要:

我们使用自旋玻璃模型与副本理论,自旋和它们的相互作用是动态变量,其配置对应的表型和基因型,分别研究进化渠化。自旋在温度T_S下更新,基因型在温度T_J下根据进化适应度进化。发现自适应发生在T_S < T_S^{RS}处,并在T_S^{RSB} < T_S < T_S^{RS}处出现一个副本对称相位。副本对称相意味着渠化,并且在较低温度下的复本对称性破缺指示鲁棒性的损失。

英文摘要:

We study evolutionary canalization using a spin-glass model with replica theory, where spins and their interactions are dynamic variables whose configurations correspond to phenotypes and genotypes, respectively. The spins are updated under temperature T_S, and the genotypes evolve under temperature T_J, according to the evolutionary fitness. It is found that adaptation occurs at T_S < T_S^{RS}, and a replica symmetric phase emerges at T_S^{RSB} < T_S < T_S^{RS}. The replica symmetric phase implies canalization, and replica symmetry breaking at lower temperatures indicates loss of robustness.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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