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nlin.CD2000
Semiclassical surface of section perturbation theory
Oleg Zaitsev
We derive analytic expressions for the wavefunctions and energy levels in the semiclassical approximation for perturbed integrable systems. We find that some eigenstates of such sy…
nlin.CD2000
Quasiclassical Born-Oppenheimer approximations
Oleg Zaitsev, R. Narevich, R. E. Prange
We discuss several problems in quasiclassical physics for which approximate solutions were recently obtained by a new method, and which can also be solved by novel versions of the…