Universal late-time dynamics in isolated one-dimensional statistical systems with topological excitations
arXiv:1910.11801 · doi:10.1103/PhysRevB.101.104313
Abstract
We investigate the non-equilibrium dynamics of a class of isolated one-dimensional systems possessing two degenerate ground states, initialized in a low-energy symmetric phase. We report the emergence of a time-scale separation between fast (radiation) and slow (kink or domain wall) degrees of freedom. We find a universal long-time dynamics, largely independent of the microscopic details of the system, in which the kinks control the relaxation of relevant observables and correlations. The resulting late-time dynamics can be described by a set of phenomenological equations, which yield results in excellent agreement with the numerical tests.
arXiv comment21 pages, 10 figures
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