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Titlebook: Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms; Yoav Sagi Book 2012 Springer-Verlag Berlin Heidelberg 20

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發(fā)表于 2025-3-21 17:09:39 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
書(shū)目名稱(chēng)Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms
編輯Yoav Sagi
視頻videohttp://file.papertrans.cn/230/229620/229620.mp4
概述Points towards means of making atom ensembles more useful in future quantum computers.Backs up a novel theoretical model of coherence dynamics with experimental tests.Nominated as an outstanding contr
叢書(shū)名稱(chēng)Springer Theses
圖書(shū)封面Titlebook: Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms;  Yoav Sagi Book 2012 Springer-Verlag Berlin Heidelberg 20
描述.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..
出版日期Book 2012
關(guān)鍵詞Atomic Ensemble; Dynamical Decoupling; Elastic Collisions; Ensemble Coherence Dynamics; High Density Ato
版次1
doihttps://doi.org/10.1007/978-3-642-29605-5
isbn_softcover978-3-642-44566-8
isbn_ebook978-3-642-29605-5Series ISSN 2190-5053 Series E-ISSN 2190-5061
issn_series 2190-5053
copyrightSpringer-Verlag Berlin Heidelberg 2012
The information of publication is updating

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發(fā)表于 2025-3-21 21:10:43 | 只看該作者
Spectral Narrowing due to Elastic Collisions,h, and demonstrate an inverse linear dependence on the former and quadratic dependence on the latter. We also find that the narrowed linewidth exhibits universal scaling with the atomic phase space density.
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Motional Broadening in Ensembles with Heavy-Tail Detuning Distribution,e linewidth of the spectrum, and demonstrate its validity through numerical simulations. Since in practice heavy tails of the frequency distribution can be sustained only up to some point, we study scenarios with cutoffs and show that motional broadening persists up to some fluctuation rate. Motiona
地板
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https://doi.org/10.1007/3-540-31287-0h, and demonstrate an inverse linear dependence on the former and quadratic dependence on the latter. We also find that the narrowed linewidth exhibits universal scaling with the atomic phase space density.
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發(fā)表于 2025-3-22 12:42:24 | 只看該作者
Intelligent Platform Management Interfacee linewidth of the spectrum, and demonstrate its validity through numerical simulations. Since in practice heavy tails of the frequency distribution can be sustained only up to some point, we study scenarios with cutoffs and show that motional broadening persists up to some fluctuation rate. Motiona
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The Ensemble Spectrum with an Arbitrary Detuning Distribution,
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The Experimental Setup,of the new apparatus which is necessary for the understanding of the experiments. Following, I elaborate on the various subsystems of the new setup. In particular, I describe the sequence which leads to Bose-Einstein condensation.
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