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.
| ISBN: | 9783642445668 |
| Publication date: | 11th June 2014 |
| Author: | Yoav Sagi |
| Publisher: | Springer an imprint of Springer Berlin Heidelberg |
| Format: | Paperback |
| Pagination: | 82 pages |
| Series: | Springer Theses |
| Genres: |
Atomic and molecular physics Low temperature physics Condensed matter physics (liquid state and solid state physics) Quantum physics (quantum mechanics and quantum field theory) Materials science |
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.
Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms features in the following genres: Atomic and molecular physics, Low temperature physics, Condensed matter physics (liquid state and solid state physics), Quantum physics (quantum mechanics and quantum field theory), Materials science
Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms is available in Paperback, Hardback
Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms was written by Yoav Sagi and published by Springer an imprint of Springer Berlin Heidelberg
Collisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms has 82 pages
Yes it is part of Springer Theses series