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The dynamics of equally spaced multilevel model systems
Author(s) -
Amirav A.,
Even U.,
Jortner Joshua
Publication year - 1991
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560390315
Subject(s) - polyatomic ion , excitation , angular momentum , coupling (piping) , physics , amplitude , statistical physics , dynamics (music) , component (thermodynamics) , atomic physics , radiative transfer , spin (aerodynamics) , molecule , chemistry , quantum mechanics , materials science , thermodynamics , acoustics , metallurgy
Coherent dynamics of multilevel systems is of interest for the elucidation of energy disposal and multiphoton chemistry of polyatomic molecules. We compare the analytical solutions for coherent multiphoton excitation of two sparse multilevel model systems: (1) The spin‐J system consisting of N = (2 J + 1) equally spaced levels with the radiative coupling being determined by the x th component of the angular momentum. (2) The equally coupled N level system. The transition amplitudes for system (1) are always periodic, which is in contrast to the nonperiodic behavior exhibited by system (2) for N > 3.