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Titlebook: Artificial Gauge Fields with Ultracold Atoms in Optical Lattices; Monika Aidelsburger Book 2016 Springer International Publishing Switzerl

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期刊全稱Artificial Gauge Fields with Ultracold Atoms in Optical Lattices
影響因子2023Monika Aidelsburger
視頻videohttp://file.papertrans.cn/163/162031/162031.mp4
發(fā)行地址Nominated as an outstanding Ph.D. thesis by the Ludwig-Maximilians-Universit?t München, Germany.Presents self-contained theoretical background information.Provides detailed discussion of the experimen
學(xué)科分類Springer Theses
圖書封面Titlebook: Artificial Gauge Fields with Ultracold Atoms in Optical Lattices;  Monika Aidelsburger Book 2016 Springer International Publishing Switzerl
影響因子.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.
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Harper-Hofstadter Model and Spin Hall Effect,s rise to a uniform flux distribution ., which is described by the famous Harper-Hofstadter Hamiltonian. By exploiting an additional pseudo-spin degree of freedom the setup further implements the time-reversal symmetric Hamiltonian underlying the quantum spin Hall effect. This led to the first exper
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All-Optical Setup for Flux Rectification,e potentials. However, observing the global properties of a fully connected 2D lattice in the presence of an artificial magnetic field remained out of reach. In this chapter a new experimental all-optical setup is described which led to the first Chern-number measurement in a non-electronic system.
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Chern-Number Measurement of Hofstadter Bands,tup discussed in the previous chapter. After appying an external force to the atoms, that were loaded into artificially generated Hofstadter bands, we recorded the evolution of the in-situ center-of-mass position of the atomic cloud. Together with band population measurements we were able to determi
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Square Lattice with Magnetic Field,s in terms of magnetic translation symmetries. The topological properties of the system are further discussed in terms of topological invariants, the Chern numbers, which are directly related to the quantization of the Hall conductivity.
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Book 2016 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
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