Quantum interference in a driven two-level atom
- 1 December 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 60 (6), R4245-R4248
- https://doi.org/10.1103/physreva.60.r4245
Abstract
We show that a dynamical suppression of spontaneous emission, predicted for a three-level atom [S.-Y. Zhu and M. O. Scully, Phys. Rev. Lett. 76, 388 (1996)] can occur in a two-level atom driven by a polychromatic field. We find that the quantum interference, responsible for the cancellation of spontaneous emission, appears between different channels of transitions among the dressed states of the driven atom. We discuss the effect for bichromatic and trichromatic (amplitude-modulated) fields and find that these two cases lead to the cancellation of spontaneous emission in different parts of the fluorescence spectrum. Our system has the advantage of being easily accessible by current experiments.Keywords
This publication has 18 references indexed in Scilit:
- Resonance fluorescence quenching and spectral line narrowing via quantum interference in a four-level atom driven by two coherent fieldsPhysical Review A, 1999
- Fluorescence control through multiple interference mechanismsPhysical Review A, 1998
- Analysis of dynamical suppression of spontaneous emissionPhysical Review A, 1998
- Laser-field-induced quantum beats in correlations in cascade emissionJournal of Modern Optics, 1998
- Effects of spontaneously generated coherence on the pump-probe response of asystemPhysical Review A, 1998
- Quantum interference in resonance fluorescence for a driven V atomPhysical Review A, 1997
- Quenching of spontaneous emission via quantum interferencePhysical Review A, 1997
- Physical picture for spontaneous-emission cancellationPhysical Review A, 1997
- Experimental Observation of Spontaneous Emission CancellationPhysical Review Letters, 1996
- Spectral Line Elimination and Spontaneous Emission Cancellation via Quantum InterferencePhysical Review Letters, 1996