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| Verfasst von: | Covey, Jacob P. [VerfasserIn]  |
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| Titel: | Enhanced Optical and Electric Manipulation of a Quantum Gas of KRb Molecules |
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| Verf.angabe: | by Jacob P. Covey |
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| Verlagsort: | Cham |
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| Verlag: | Springer International Publishing |
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| Jahr: | 2018 |
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| Umfang: | Online-Ressource (XVI, 249 p. 148 illus., 142 illus. in color, online resource) |
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| Gesamttitel/Reihe: | Springer Theses, Recognizing Outstanding Ph.D. Research |
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| | SpringerLink : Bücher |
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| | Springer eBook Collection |
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| ISBN: | 978-3-319-98107-9 |
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| Abstract: | This thesis describes significant advances in experimental capabilities using ultracold polar molecules. While ultracold polar molecules are an idyllic platform for quantum chemistry and quantum many-body physics, molecular samples prior to this work failed to be quantum degenerate, were plagued by chemical reactions, and lacked any evidence of many-body physics. These limitations were overcome by loading molecules into an optical lattice to control and eliminate collisions and hence chemical reactions. This led to observations of many-body spin dynamics using rotational states as a pseudo-spin, and the realization of quantum magnetism with long-range interactions and strong many-body correlations. Further, a 'quantum synthesis' technique based on atomic insulators allowed the author to increase the filling fraction of the molecules in the lattice to 30%, a substantial advance which corresponds to an entropy-per-molecule entering the quantum degenerate regime and surpasses the so-called percolations threshold where long-range spin propagation is expected. Lastly, this work describes the design, construction, testing, and implementation of a novel apparatus for controlling polar molecules. It provides access to: high-resolution molecular detection and addressing; large, versatile static electric fields; and microwave-frequency electric fields for driving rotational transitions with arbitrary polarization. Further, the yield of molecules in this apparatus has been demonstrated to exceed 10^5, which is a substantial improvement beyond the prior apparatus, and an excellent starting condition for direct evaporative cooling to quantum degeneracy |
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| | Chapter1. Introduction -- Chapter2. Experimental Background and Overview -- Chapter 3. Quantum-State Controlled Chemical Reactions and Dipolar Collisions -- Chapter 4. Suppression of Chemical Reactions in a 3D Lattice -- Chapter 5. Quantum Magnetism with Polar Molecules in a 3D Optical Lattice -- Chapter 6. A Low Entropy Quantum Gas of Polar Molecules in a 3D Optical Lattice -- Chapter 7. The New Apparatus - Enhanced Optical and Electric Manipulation of Ultracold Polar Molecules -- Chapter 8. Designing, Building and Testing the New Apparatus -- Chapter 9. Experimental Procedure - Making Molecules in the New Apparatus -- Chapter 10. New Physics with the New Apparatus - High Resolution Optical Detection and Large, Stable Electric Fields -- Chapter 11. Outlook |
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| DOI: | doi:10.1007/978-3-319-98107-9 |
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| URL: | Volltext: http://dx.doi.org/10.1007/978-3-319-98107-9 |
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| | Resolving-System: https://doi.org/10.1007/978-3-319-98107-9 |
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| | DOI: https://doi.org/10.1007/978-3-319-98107-9 |
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| Schlagwörter: | (s)Quantengas / (s)Ultrakaltes Molekül / (s)Polares Molekül / (s)Kalium-40 / (s)Rubidium-87 / (s)Optisches Gitter <Quantenoptik> / (s)Optische Eigenschaft / (s)Elektronische Eigenschaft / (s)Magnetische Eigenschaft / (s)Spinsystem |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Reproduktion: | Printed edition |
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| | Printed edition |
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| (Gesamttitel): | Springer eBook Collection. Physics and Astronomy |
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| Bibliogr. Hinweis: | Erscheint auch als : Druck-Ausgabe |
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| K10plus-PPN: | 1038689864 |
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| Lokale URL UB: |  Zum Volltext |
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Enhanced Optical and Electric Manipulation of a Quantum Gas of KRb Molecules / Covey, Jacob P. [VerfasserIn]; 2018 (Online-Ressource)
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