Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms:
Saved in:
| Format: | Electronic eBook |
|---|---|
| Language: | English |
| Published: |
Berlin, Heidelberg
Springer Berlin Heidelberg
2012
|
| Series: | Springer Theses, Recognizing Outstanding Ph.D. Research
|
| Subjects: | |
| Online Access: | TUM01 UBT01 Volltext |
| Item Description: | The Experimental Setup -- Theoretical Framework -- Spectral Narrowing due to Elastic Collisions -- The Ensemble Spectrum with an Arbitrary Detuning Distribution -- Motional Broadening in Ensembles with Heavy-tail Detuning Distribution -- Suppression of Collisional Decoherence by Dynamical Decoupling 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. |
| Physical Description: | 1 Online-Ressource |
| ISBN: | 9783642296055 |
| DOI: | 10.1007/978-3-642-29605-5 |
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| isbn | 9783642296055 |
| language | English |
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| series2 | Springer Theses, Recognizing Outstanding Ph.D. Research |
| spelling | Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms by Yoav Sagi Berlin, Heidelberg Springer Berlin Heidelberg 2012 1 Online-Ressource txt rdacontent c rdamedia cr rdacarrier Springer Theses, Recognizing Outstanding Ph.D. Research The Experimental Setup -- Theoretical Framework -- Spectral Narrowing due to Elastic Collisions -- The Ensemble Spectrum with an Arbitrary Detuning Distribution -- Motional Broadening in Ensembles with Heavy-tail Detuning Distribution -- Suppression of Collisional Decoherence by Dynamical Decoupling 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. Quantentheorie Physics Quantum theory Atomic, Molecular, Optical and Plasma Physics Quantum Information Technology, Spintronics Quantum Physics Low Temperature Physics Sagi, Yoav Sonstige oth https://doi.org/10.1007/978-3-642-29605-5 Verlag Volltext |
| spellingShingle | Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms Quantentheorie Physics Quantum theory Atomic, Molecular, Optical and Plasma Physics Quantum Information Technology, Spintronics Quantum Physics Low Temperature Physics |
| title | Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms |
| title_auth | Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms |
| title_exact_search | Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms |
| title_full | Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms by Yoav Sagi |
| title_fullStr | Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms by Yoav Sagi |
| title_full_unstemmed | Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms by Yoav Sagi |
| title_short | Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms |
| title_sort | collisional narrowing and dynamical decoupling in a dense ensemble of cold atoms |
| topic | Quantentheorie Physics Quantum theory Atomic, Molecular, Optical and Plasma Physics Quantum Information Technology, Spintronics Quantum Physics Low Temperature Physics |
| topic_facet | Quantentheorie Physics Quantum theory Atomic, Molecular, Optical and Plasma Physics Quantum Information Technology, Spintronics Quantum Physics Low Temperature Physics |
| url | https://doi.org/10.1007/978-3-642-29605-5 |
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