H atom in elliptically polarized microwaves: Semiclassical versus quantum resonant dynamics

4 v 1 2 9 Se p 19 98 H atom in elliptically polarized microwaves : Semiclassical versus quantum resonant dynamics

The dynamics of Rydberg states of atomic hydrogen illuminated by resonant elliptically polarized microwaves is investigated both semiclassically and quantum mechanically in a simplified two-dimensional model of an atom. Semiclassical predictions for quasienergies of the system are found to be in a very good agreement with exact quantum data enabling a classification of possible types of motion ...

Resonant dynamics of the H atom in an elliptically polarized microwave field

The dynamics of Rydberg states of atomic hydrogen driven by elliptically polarized microwaves of frequency fulfilling the 2:1 classical resonance condition is investigated both semiclassically and quantum mechanically in a simplified two-dimensional model of an atom. Semiclassical results for quasienergies of the system are shown to be in good agreement with exact quantum data. The structures o...

Phase space structures and ionization dynamics of hydrogen atom in elliptically polarized microwaves

H-atom ionization by elliptically polarized microwave fields: The overlap criterion

The threshold for H-atom ionization by elliptically polarized microwave fields is discussed within the classical-mechanics framework using the Chirikov overlap criterion. It is shown that the trends observed in the recent experiment @M. R. W. Bellermann et al. Phys. Rev. Lett. 76, 892 ~1996!# are qualitatively reproduced by the theory; the origin of the remaining discrepancy is discussed. Incre...

Nonlinear magneto-optical rotation of elliptically polarized light

We predict theoretically and demonstrate experimentally an ellipticity-dependent nonlinear magneto-optic rotation of elliptically polarized light propagating in a medium with atomic coherence. We show that this effect results from hexadecapole and higher-order moments of the atomic coherence, and is associated with an enhancement of Kerr and higher-order nonlinearities accompanied by suppressio...