Cavity-induced decay of Floquet states in a bichromatic driving field

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.51.721· OSTI ID:6702745

Agarwal, G S; Lange, W; Walther, H ^[1]

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1. Sektion Physik der Universitaet Muenchen and Max-Planck-Institut fuer Quantenoptik, D-85748 Garching (Germany)

A theoretical study of the dynamics of Rydberg atoms in a microwave cavity driven by a strong bichromatic field is presented. The resonator is assumed to operate in the low-[ital Q] regime. As a consequence, photons emitted by the atoms are dissipated in the cavity walls during the interaction time of the atoms inside the resonator. In this situation the cavity field follows the atomic dynamics adiabatically. The transient behavior of the system is analyzed in terms of Floquet states, and cavity-induced transition rates between these states are calculated for a large range of parameters of the bichromatic field. Narrow resonances are found in the transition rates, in agreement with recent experimental investigations of cavity Rydberg atoms subjected to strong bichromatic driving. We explain in detail the structure of the resonances, which is determined by the frequency-dependent cavity-mode density as well as the Rabi frequencies of the applied fields. The intensity-dependent shifts of the resonance frequencies are also calculated and found to be largely insensitive to inhomogeneous broadening. Finally, the numerical results are compared with experimental observations.

• OSTI ID: 6702745
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 51:1; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
CAVITY RESONATORS
ELECTRODYNAMICS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ENERGY LEVELS
EQUIPMENT
EXCITED STATES
FIELD THEORIES
MICROWAVE RADIATION
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
RADIATIONS
RESONANCE
RESONATORS
RYDBERG STATES
TRANSIENTS