Regensburg 2016 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 41: Quantum Chaos
DY 41.8: Vortrag
Mittwoch, 9. März 2016, 17:15–17:30, H48
Experiments on microwave graphs with anti-unitary symmetry squaring to minus one — •Aimaiti Rehemanjiang1, Markus Allgaier2,1, Christopher Joyner5, Sebastian Müller3, Martin Sieber3, Hans-Jürgen Stöckmann1, and Ulrich Kuhl4,1 — 1Quantum chaos group, Fachbereich Physik der Philipps-Universität, Marburg, Germany — 2Integrated Quantum Optics, Applied Physics, Universität Paderborn, Paderborn, Germany — 3School of Mathematics, University of Bristol, Bristol, UK — 4Laboratoire de Physique de la Matière Condensée, CNRS UMR 7336, Université Nice Sophia Antipolis, Nice, France — 5School of Mathematical Sciences, Queen Mary University of London, London, UK
Following an idea by Joyner et al. [1] a microwave graph with antiunitary symmetry squaring to -1 has been realized. The Kramers doublets expected for such systems have been clearly identified and could be lifted by a perturbation which breaks this antiunitary symmetry. The found spectral level spacings distribution of these Kramers doublets is in agreement with the predictions from the Gaussian symplectic ensemble, expected for chaotic systems with such an antiunitary symmetry.
[1] C. Joyner, S. Müller, M. Sieber, EPL, 107 (2014) 50004