Uncovering spectral repulsion in extended quasienergy states
- 1 July 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 40 (2) , 1055-1062
- https://doi.org/10.1103/physreva.40.1055
Abstract
We study classical and quantum mechanics of a rotor in the presence of two interacting nonlinear resonances. Quasienergy states and quasienergies are computed. The widths of the quasienergy states in the representation of the unperturbed angular-momentum levels are found to be closely associated with the classical dynamics. The widths of many resonant quasienergy states are found to be extended by the quantum-resonance overlap when the perturbation is increased. Spectral repulsion is present in these extended states.Keywords
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