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Berlin 2018 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 69: Poster: Quantum Systems

DY 69.12: Poster

Donnerstag, 15. März 2018, 15:30–18:00, Poster A

Frequency splittings in deformed optical microdisk cavities — •Chang-Hwan Yi1, Julius Kullig1,2, Chil-Min Kim3, and Jan Wiersig11Institut für Theoretische Physik, Otto-von-Guericke-Universität Magdeburg, Postfach 4120, D-39016 Magdeburg, Germany — 2Institute for Physics, Theoretical Physics II/Computational Physics Group, Technische Universität Ilmenau, Weimarer Straße 25,98693 Ilmenau, Germany — 3Department of Emerging Materials Science, DGIST, Daegu 711-873, Korea

The frequency splitting of nearly degenerate optical modes in weakly deformed microdisks is investigated. According to a mirror-reflection symmetry of the cavity, the even and odd parity modes are studied. A semiclassical approach of dynamical tunneling (resonance-assisted tunneling) is implemented in order to explain the frequency splitting between clockwise and counterclockwise propagating waves. We deduce semiclassical predictions for the frequency splittings which agree well with full numerical calculations. As a representative deformation of an integrable and non-integrable systems, the ellipse and the quadrupole shapes are examined in detail. Different properties of the frequency splittings following the Dirichlet and dielectric boundary conditions are discussed.

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