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cond-mat.stat-mech2025
From Near-Integrable to Far-from-Integrable: A Unified Picture of Thermalization and Heat Transport
Weicheng Fu, Zhen Wang, Yisen Wang +2
Whether and how a system approaches equilibrium is central in nonequilibrium statistical physics, crucial to understanding thermalization and transport. Bogoliubov's three-stage (i…
cond-mat.stat-mech2025
Multi-Type Instability Processes of Periodic Orbits in Nonlinear Chains
Weicheng Fu, Zhen Wang, Yong Zhang +1
Nonlinear normal modes are periodic orbits that survive in nonlinear many-body Hamiltonian systems, and their instability is crucial for relaxation dynamics. Here, we study the ins…