Authors
Giuseppe Longo
École Normale Supérieure
Maël Montévil
Université Paris-Sorbonne
Abstract
Symmetries play a major role in physics, in particular since the work by E. Noether and H. Weyl in the first half of last century. Herein, we briefly review their role by recalling how symmetry changes allow to conceptually move from classical to relativistic and quantum physics. We then introduce our ongoing theoretical analysis in biology and show that symmetries play a radically different role in this discipline, when compared to those in current physics. By this comparison, we stress that symmetries must be understood in relation to conservation and stability properties, as represented in the theories. We posit that the dynamics of biological organisms, in their various levels of organization, are not just processes, but permanent (extended, in our terminology) critical transitions and, thus, symmetry changes. Within the limits of a relative structural stability (or interval of viability), variability is at the core of these transitions.
Keywords Coherent structures  Critical transitions  Downward causation  Hidden variables  Levels of organization  Symmetries  Systems biology
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Integral Biomathics Reloaded: 2015.Plamen L. Simeonov & Ron Cottam - forthcoming - Journal Progress in Biophysics and Molecular Biology 119 (2).

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