By Yoav Sagi
Ultra-cold atomic ensembles have emerged lately as a robust software in many-body physics examine, quantum info technology and metrology. This thesis provides an experimental and theoretical learn of the coherent houses of trapped atomic ensembles at excessive densities, that are necessary to the various aforementioned purposes. The examine makes a speciality of how inter-particle interactions adjust the ensemble coherence dynamics, and if it is attainable to increase the coherence time through exterior keep watch over. The thesis provides a theoretical version and is the reason the influence of elastic collision of the coherence dynamics after which stories on experiments which try this version effectively within the lab. additionally, the paintings comprises the 1st implementation of dynamical decoupling with ultra-cold atomic ensembles. it truly is validated experimentally that by utilizing dynamical decoupling the coherence time might be prolonged 20-fold. This has a superb power to extend the usefulness of those ensembles for quantum computation.
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Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms (Springer Theses) by Yoav Sagi