Roundabout Relaxation: Collective Excitation Requires a Detour to Equilibrium
Roundabout Relaxation: Collective Excitation Requires a Detour to Equilibrium
Relaxation to equilibrium after strong and collective excitation is studied by using a Hamiltonian dynamical system of a one-dimensional XY model. After an excitation of a domain of K elements, the excitation is concentrated to fewer elements, which are made farther away from equilibrium, and the excitation intensity increases logarithmically …