Fisica Statistica
Mutual linearity of nonequilibrium network currents
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Europe/Rome
1/3-1 - Sala R (Dipartimento di Fisica e Astronomia - Edificio Marzolo)
1/3-1 - Sala R
Dipartimento di Fisica e Astronomia - Edificio Marzolo
25
Description
The paradigm of irreversible thermodynamics largely revolves around pairs of conjugated observables (current and force) and linear relations among them, close to equilibrium. This study takes a different path, by examining how currents respond to changes in other currents, without directly addressing driving forces. Using continuous-time Markov chains, we establish a linear-affine relationship between any two network currents, valid even far from equilibrium, and derive a formula for the current-to-current susceptibility via spanning-tree ensembles. Finally, we discuss how inherent linearity among network currents can be exploited in complex metabolic networks.
Organised by
Marco Baiesi