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Record Nr. |
UNINA990004710160403321 |
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Autore |
Zafiropulo, Jean |
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Titolo |
Empèdocle d'Agrigente / par Jean Zafiropulo |
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Pubbl/distr/stampa |
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Paris, : Les Belles Lettres, 1953 |
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Descrizione fisica |
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Collana |
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Collection d'études anciennes |
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Locazione |
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Collocazione |
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ARCH. PH 065 8 |
FCL 503 (55) |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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2. |
Record Nr. |
UNINA9910254611903321 |
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Autore |
Aidelsburger Monika |
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Titolo |
Artificial Gauge Fields with Ultracold Atoms in Optical Lattices / / by Monika Aidelsburger |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2016 |
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ISBN |
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Edizione |
[1st ed. 2016.] |
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Descrizione fisica |
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1 online resource (180 p.) |
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Collana |
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Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053 |
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Disciplina |
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Soggetti |
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Phase transformations (Statistical physics) |
Condensed matter |
Low temperatures |
Quantum computers |
Spintronics |
Quantum Gases and Condensates |
Low Temperature Physics |
Quantum Information Technology, Spintronics |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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"Doctoral Thesis accepted by Ludwig-Maximilians-Universität München, Germany." |
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Nota di bibliografia |
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Includes bibliographical references at the end of each chapters. |
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Nota di contenuto |
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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. |
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Sommario/riassunto |
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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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