Journal ArticleDOI
Atomic dipole squeezing in the degenerate λ quantum beat three-level system
Qing-Chun Zhou,Shi Ning Zhu +1 more
TLDR
In this article, the authors investigated the time evolution of the atomic dipole squeezing parameters of a Λ-type three-level atom interacting with a single-mode coherent optical field.Abstract:
By using the full quantum theory, we investigate the time evolution of the atomic dipole squeezing parameters of a Λ-type three-level atom interacting with a single-mode coherent optical field, and study the influence of the initial coherent-field intensity, the initial atomic coherence, the initial populations and energy splitting of the two lower atomic levels on the atomic dipole squeezing. The influence of a classical external driving field coupling to the atom on the atomic dipole squeezing is also explored at the end of the paper.read more
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Observation of the Vacuum-Rabi Spectrum for One Trapped Atom
TL;DR: A new Raman scheme for cooling atomic motion along the cavity axis enables a complete spectrum to be recorded for an individual atom trapped within the cavity mode, in contrast to all previous measurements in cavity QED that have required averaging over 10(3)-10(5) atoms.
References
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Journal ArticleDOI
Degenerate quantum-beat laser: Lasing without inversion and inversion without lasing.
TL;DR: A single lasing mode driven by a three-level ''quantum-beat'' atomic configuration can show gain without population inversion or optical absorption into an excited state without spontaneous or stimulated emission.
Journal ArticleDOI
Coherent states, squeezed fluctuations, and the SU(2) am SU(1,1) groups in quantum-optics applications
K. Wódkiewicz,Joseph H. Eberly +1 more
TL;DR: In this article, the theory of generalized coherent states associated with the SU(2) and SU(1,1) Lie algebras is discussed and applied in an investigation of possible reductions of fluctuations.
Journal ArticleDOI
Reduced Quantum Fluctuations in Resonance Fluorescence
D. F. Walls,Peter Zoller +1 more
TL;DR: In this article, reduced quantum fluctuations or squeezing are present in both the atomic observables and the radiation field produced by a two-level atom undergoing resonance fluorescence, and it is shown that reduced quantum fluctuation or squeezing is present in the two level atom.
Journal ArticleDOI
Observation of the Vacuum Rabi Spectrum for One Trapped Atom
TL;DR: In this paper, a new Raman scheme for cooling atomic motion along the cavity axis enables a complete spectrum to be recorded for an individual atom trapped within the cavity mode, in contrast to all previous measurements in cavity QED that have required averaging over 10^3-10^5 atoms.
Journal ArticleDOI
Dissipation in a fundamental model of quantum optical resonance
Stephen M. Barnett,P. L. Knight +1 more
TL;DR: It is demonstrated that the revivals of atomic excitation which are the signature of the quantum nature of the evolution are strongly affected by field dissipation even when the damping hardly affects the underlying Rabi oscillations.