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Showing 1 to 5 of 5 for “"Quantenchaos"”.
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Numerische Studien über Quantenchaos und Ergodizität in nicht-relativistischen Quantensystemen
Die Arbeit gibt einen Überblick über alle relevanten Maße zur Beurteilung von deterministischem Chaos in nicht-relativistischen Quantensystemen. Wir zeigen für verschränkte Zustände in einem Zweioszillatorsystem, dass es eine Abstufung von Chaos mit steigenden Quantenzahlen gibt. Das System besitzt …
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Eigenfunctions in chaotic quantum systems
The structure of wavefunctions of quantum systems strongly depends on the underlying classical dynamics. In this text a selection of articles on eigenfunctions in systems with fully chaotic dynamics and systems with a mixed phase space is summarized. Of particular interest are statistical …
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Fractal Dimensions in Classical and Quantum Mechanical Open Chaotic Systems
Fractals have long been recognized to be a characteristic feature arising from chaotic dynamics; be it in the form of strange attractors, of fractal boundaries around basins of attraction, or of fractal and multifractal distributions of asymptotic measures in open systems. In this thesis we study …
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Dynamical Tunneling in Systems with a Mixed Phase Space
Tunneling is one of the most prominent features of quantum mechanics. While the tunneling process in one-dimensional integrable systems is well understood, its quantitative prediction for systems with mixed phase space is a long-standing open challenge. In such systems regions of regular and …
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Mesoscopic wave phenomena in electronic and optical ring structures
Gegenstand dieser Arbeit sind Wellenphänomene in mesoskopischen Ringstrukturen. In Teil I der Arbeit befassen wir uns mit spinabhängigem Transport von Elektronen in effektiv eindimensionalen Ringen in Gegenwart inhomogener Magnetfelder. Wir benutzen die exakten Lösungen der Schrödinger-Gleichung im …