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.
Product Identifiers
Publisher
Springer-Verlag Berlin and Heidelberg Gmbh & Co. Kg
ISBN-13
9783642296048
eBay Product ID (ePID)
114869265
Product Key Features
Author
Yoav Sagi
Publication Name
Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms
Format
Hardcover
Language
English
Subject
Physics
Publication Year
2012
Type
Textbook
Number of Pages
82 Pages
Dimensions
Item Height
235mm
Item Width
155mm
Item Weight
319g
Additional Product Features
Title_Author
Yoav Sagi
Series Title
Springer Theses
Country/Region of Manufacture
Germany
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