Generalized Rabi oscillations in a three-level metastable system under periodic and quasiperiodic perturbations
✍ Scribed by S. Adhikari; D. N. Nath; S. P. Bhattacharyya
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 500 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0020-7608
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✦ Synopsis
The quantum dynamics of prototypical three-level metastable system under external perturbations, both time-independent and time-dependent, are studied numerically as well as analytically. The regular Rabi oscillations generated in the system under a monochromatic perturbation are shown to develop additional features when the system has a metastable state. The autocorrelation function of @(t> reveals nondecaying, almost quasiperiodic, behavior in such systems. The Rabi oscillations turn more complex when a bichromatic perturbation with two incommensurate frequencies is allowed to interact with the three-level system, irrespective of the presence or absence of a metastable state. A rapid decay in the autocorrelation function of the wavefunction [ @ ( t ) ] is observed in such cases.