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Autore: | Aidelsburger Monika |
Titolo: | Artificial Gauge Fields with Ultracold Atoms in Optical Lattices / / by Monika Aidelsburger |
Pubblicazione: | Cham : , : Springer International Publishing : , : Imprint : Springer, , 2016 |
Edizione: | 1st ed. 2016. |
Descrizione fisica: | 1 online resource (180 p.) |
Disciplina: | 599.0188 |
Soggetto topico: | Phase transformations (Statistical physics) |
Condensed materials | |
Low temperature physics | |
Low temperatures | |
Quantum computers | |
Spintronics | |
Quantum Gases and Condensates | |
Low Temperature Physics | |
Quantum Information Technology, Spintronics | |
Note generali: | "Doctoral Thesis accepted by Ludwig-Maximilians-Universität München, Germany." |
Nota di bibliografia: | Includes bibliographical references at the end of each chapters. |
Nota di contenuto: | Introduction -- Square Lattice with Magnetic field -- Artificial Gauge Fields with Laser-Assisted Tunneling -- Overview of the Experimental Setup and Measurement Techniques -- Staggered Magnetic Flux -- Harper-Hofstadter Model and Spin Hall Effect -- All-Optical Setup for Flux Rectification -- Chern-Number Measurement of Hofstadter Bands -- Conclusions and Outlook. |
Sommario/riassunto: | This work reports on the generation of artificial magnetic fields with ultracold atoms in optical lattices using laser-assisted tunneling, as well as on the first Chern-number measurement in a non-electronic system. It starts with an introduction to the Hofstadter model, which describes the dynamics of charged particles on a square lattice subjected to strong magnetic fields. This model exhibits energy bands with non-zero topological invariants called Chern numbers, a property that is at the origin of the quantum Hall effect. The main part of the work discusses the realization of analog systems with ultracold neutral atoms using laser-assisted-tunneling techniques both from a theoretical and experimental point of view. Staggered, homogeneous and spin-dependent flux distributions are generated and characterized using two-dimensional optical super-lattice potentials. Additionally their topological properties are studied via the observation of bulk topological currents. The experimental techniques presented here offer a unique setting for studying topologically non-trivial systems with ultracold atoms. |
Titolo autorizzato: | Artificial Gauge Fields with Ultracold Atoms in Optical Lattices |
ISBN: | 3-319-25829-X |
Formato: | Materiale a stampa |
Livello bibliografico | Monografia |
Lingua di pubblicazione: | Inglese |
Record Nr.: | 9910254611903321 |
Lo trovi qui: | Univ. Federico II |
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