So Katagiri

collaborators

4 papers

cond-mat.stat-mech2026

Nambu Nonequilibrium Thermodynamics and the Lyapunov Structure of Open Systems

So Katagiri

In open nonequilibrium systems, the thermodynamic entropy of a subsystem is not generally a Lyapunov function. Even during relaxation toward equilibrium, it may decrease temporaril…

cond-mat.stat-mech2026

A Gauge-Theoretic Formulation of Nambu Non-equilibrium Thermodynamics

So Katagiri

We present a gauge-theoretic formulation of Nambu non-equilibrium thermodynamics (NNET). In this framework, the thermodynamic one-form $A = A_{i} d a^{i}$ is treated as an Abelian thermod…

cond-mat.stat-mech2026

Applications of Nambu Non-equilibrium Thermodynamics to Specific Phenomena

So Katagiri, Yoshiki Matsuoka, Akio Sugamoto

We apply Nambu non-equilibrium thermodynamics (NNET)-a dynamics with multiple Hamiltonians coupled to entropy-induced dissipation-to paradigmatic far-from-equilibrium systems. Conc…

cond-mat.stat-mech2026

Reduction of Complex Dynamics in Far-from-equilibrium Systems: Nambu Non-equilibrium Thermodynamics

So Katagiri, Yoshiki Matsuoka, Akio Sugamoto

Far-from-equilibrium thermodynamic systems dominated by strong nonlinearity are reformulated within a dynamical framework based on the Nambu bracket formalism. It is demonstrated t…