TITEL

Research: Chaos and Quantum Chaos

Highlights 2008
- Regular-to-chaotic tunneling rates using a fictitious integrable system, Phys. Rev. Lett. 100, 104101 (2008)
- Residual Coulomb interaction fluctuations in chaotic systems, Phys. Rev. Lett. 100, 164101 (2008)
- Dynamical tunneling in mushroom billiards, Phys. Rev. Lett. 100, 174103 (2008)
- On universality of algebraic decays in Hamiltonian systems, Phys. Rev. Lett. 100, 184101 (2008)

Mixed Systems - Mesoscopic Physics

We study the quantum signatures of deterministic chaotic dynamics with emphasis on mixed systems, where regular and chaotic dynamics coexist in a fascinating way. This leads to measurable phenomena in mesoscopic devices, such as semiconductor nanostructures. more ...

Fractals in quantum mechanics

Quantum systems with fractal spectra and eigenfunctions show anomalous quantum transport. We explore this relation and the influence of classical chaos in particular for Bloch electrons in magnetic fields. more ...

Hamiltonian Ratchets

Molecular motors and Brownian motors have attracted much attention recently. We investigate ratchets in the absence of dissipation and study their classical and quantum behavior. more ...

Computational methods

Efficient numerical methods for determining eigenvalues and wave functions of quantum systems (e.g. chaotic billiards) are developed. more ...

DFG Forschergruppe FOR 760: Scattering Systems with Complex Dynamics

Topics:
- Fundamental aspects of quantum-classical correspondence
- Random versus deterministic transport
- Scattering in coherent many-body systems
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Teaching: Wintersemester 2008/2009

Vorlesung: Chaos and Quantum Chaos	Hauptseminar Nichtlineare Dynamik
Vorlesung: Thermodynamik und Statistische Physik für Physiklehrer	Seminar IMPRS (International Max-Planck Research School) Dynamical Processes in Atoms, Molecules and Solids at the Max-Planck-Institute for the Physics of Complex Systems