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Opis

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.

Szczegóły książki

Kategoria Książki po angielsku Mathematics & science Physics Materials / States of matter

• Pełny tytuł: Artificial Gauge Fields with Ultracold Atoms in Optical Lattices
• Autor: Monika Aidelsburger
• Język: Angielski
• Oprawa: Twarda
• Liczba stron: 172
• EAN: 9783319258270
• ISBN: 3319258273
• ID: 09545782
• Wydawca: Springer International Publishing AG
• Waga: 4085 g
• Wymiary: 235 × 155 × 18 mm
• Data wydania: 15. December 2015

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