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Dresden 2017 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 33: Transport: Quantum Coherence and Quantum Information Systems - Experiment (jointly with MA, HL)

MA 33.9: Vortrag

Mittwoch, 22. März 2017, 11:45–12:00, HSZ 03

Probing the strong coupling regime between microwave resonators and YPc2 molecule ensembles — •Yannick Schön1, Eufemio Pineda2, Hannes Rotzinger1, Marco Pfirrmann1, Andre Schneider1, Julius Krause1, Sebastian T. Skacel1, Mario Ruben2, Alexey V. Ustinov1, and Martin Weides1,31Karlsruhe Institute of Technology, Institute of Physics — 2Karlsruhe Institute of Technology, Institute of Nanotechnology — 3Johannes Gutenberg-University Mainz, Institute of Physics

We investigate magnetic molecule ensembles with microwave signals in the low GHz range. This offers a measurement and manipulation framework, which can reliably be integrated into hybrid quantum systems, and facilitates joint applications of magnetic molecules in the rapidly growing field of quantum information processing.

The studied material family of lanthanide or metal Phtalocyanine 2 compounds exhibits a wide range of splittings between their electronic states, as well as molecular anisotropy, depending on the central ion. Our setup facilitates probing dynamics of different molecules with a 3d cavity in dependence of temperature, power or magnetic field.

In particular, the strong coupling of Yttrium Pc2 (YPc2) to microwave resonators has been investigated between 25 mK and 20 K, and compared to simulation based on input-output theory. The extracted parameters contain information about the sample transitions, their linewidth, and coupling strength down to the quantum regime. Furthermore, on-chip integration of molecule ensembles with superconducting niobium 2d resonators is demonstrated.

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