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Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms



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Éditeur :

Springer


Collection :

Springer Theses

Paru le : 2012-05-23



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Description

Ultra-cold atomic ensembles have emerged in recent years as a powerful tool in many-body physics research, quantum information science and metrology. This thesis presents an experimental and theoretical study of the coherent properties of trapped atomic ensembles at high densities, which are essential to many of the aforementioned applications. The study focuses on how inter-particle interactions modify the ensemble coherence dynamics, and whether it is possible to extend the coherence time by means of external control. The thesis presents a theoretical model which explains the effect of elastic collision of the coherence dynamics and then reports on experiments which test this model successfully in the lab. Furthermore, the work includes the first implementation of dynamical decoupling with ultra-cold atomic ensembles. It is demonstrated experimentally that by using dynamical decoupling the coherence time can be extended 20-fold. This has a great potential to increase the usefulness of these ensembles for quantum computation.
Pages
82 pages
Collection
Springer Theses
Parution
2012-05-23
Marque
Springer
EAN papier
9783642296048
EAN EPUB
9783642296055
Informations sur l'ebook
Nombre pages copiables
0
Nombre pages imprimables
8
Taille du fichier
1864 Ko
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Prix
94,94 €

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