Abstract.
Nonadiabatic behavior of metastable systems modeled by anharmonic Hamiltonians is reproduced by the Fokker-Planck and imaginary time Schrödinger equation scheme with subsequent symplectic integration. Example solutions capture ergodicity breaking, reassure the H-theorem of global stability [M. Shiino, Phys. Rev. A 36, 2393 (1987)], and reproduce spatially extended response under alternate source fields.
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Klotins, E. Symplectic integration approach for metastable systems. Eur. Phys. J. B 50, 315–320 (2006). https://doi.org/10.1140/epjb/e2006-00127-8
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DOI: https://doi.org/10.1140/epjb/e2006-00127-8