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          Institute: MPI für Kernphysik     Collection: Theoretical Quantum Dynamics     Display Documents



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ID: 285777.0, MPI für Kernphysik / Theoretical Quantum Dynamics
Vacuum-mediated incoherent processes in coherently prepared media
Authors:Evers, Jörg; Jentschura, Ulrich David; Macovei, Mihai; Keitel, Christoph Helmut
Language:English
Publisher:SPIE
Place of Publication:Bellingham, Wash.
Date of Publication (YYYY-MM-DD):2005
Title of Proceedings:Fluctuations and noise in photonics and quantum optics III
Title of Series:Proceedings of SPIE
Volume (in Series):5842
Physical Description:XXVIII, 316 S.
Name of Conference/Meeting:Fluctuations and Noise in Photonics and Quantum Optics III
Place of Conference/Meeting:Austin, Texas, USA
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
2005-05-24
End Date of Conference/Meeting 
 (YYYY-MM-DD):
2005-05-26
Copyright:© 2005 The Society of Photo-Optical Engineering
Review Status:not specified
Audience:Experts Only
Abstract / Description:We discuss various aspects of the incoherent spontaneous emission in atomic few-level systems arising from the coupling of the atom to the surrounding vacuum. First, we consider systems where the decoherence due to spontaneous emission acts as a limiting factor. Here, we combine collective effects in larger samples of atoms with control mechanisms known from single-atom schemes, or modifiy the system dynamics by externally inducing multiphoton quantum interference effects. In the second part, we discuss ground-state laser cooling of trapped atoms and ions. Here, the momentum transfer in the spontaneous emission events is required to cool the particles, but needs to be controlled in order to achieve a low cooling limit. In our scheme, we make use of double electromagnetically induced transparency in order to design the absorption spectrum of the trapped particle. In the final part, we show that the incoherent part of the resonance fluorescence spectrum of a two-level system may serve as an interesting candidate for high-precision spectroscopy. For this, we discuss relativistic and radiative corrections to the resonance fluorescence spectra of laser-driven few-level systems.
External Publication Status:published
Document Type:Conference-Paper
Communicated by:C.H. Keitel
Affiliations:MPI für Kernphysik/ Group C.H. Keitel/Quantum Interferences and Collective Quantum Dynamics (J. Evers)
Identifiers:DOI:10.1117/12.609233
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