Regensburg 2010 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 23: TR: Quantum Coherence and Quantum Information Systems 2

TT 23.8: Vortrag

Mittwoch, 24. März 2010, 16:15–16:30, H18

Strong coupling of two flux qubits to a colanar waveguide resonator — •Thomas Niemczyk¹, Hans Huebl¹, Frank Deppe^1,2, Edwin Menzel¹, Manuel Schwarz¹, Elisabeth Hoffmann^1,2, Fredrik Hocke¹, Achim Marx¹, and Rudolf Gross^1,2 — ¹Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany — ²Physik Department E23, Technische Universität München, 85748 Garching, Germany

The field of circuit QED opens new possibilities in both quantum information processing and studies of fundamental quantum mechanics "on a chip". Central building blocks are qubit circuits, which interact with on-chip superconducting microwave resonators. Of particular importance is the strong-coupling regime, where the coupling strength exceeds all relevant decay rates in the system. Here, we present spectroscopic measurements on two superconducting flux qubits strongly coupled to a coplanar waveguide resonator.
Finacial support via SFB631 and the Excellence Initative via NIM is gratefully acknowledged.