Strong coupling of two flux qubits to a colanar waveguide resonator

POSTER

Abstract

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.

*We acknowledge support form SFB631, NIM, and UPV/EHU Grant GIU07/40, and European project EuroSQIP.

Authors

  • Frank Deppe

    • Walther-Meissner-Institut and TU Muenchen, Germany
    • Walther-Meissner-Institut and TU Muenchen, Garching, Germany
  • T. Niemczyk

    • Walther-Meissner-Institut and TU Muenchen, Garching, Germany
  • E. P. Menzel

    • Walther-Meissner-Institut and TU Muenchen, Garching, Germany
  • E. Hoffmann

    • Walther-Meissner-Institut and TU Muenchen, Garching, Germany
  • M. J. Schwarz

    • Walther-Meissner-Institut and TU Muenchen, Garching, Germany
  • A. Marx

    • Walther-Meissner-Institut and TU Muenchen, Garching, Germany
  • R. Gross

    • Walther-Meissner-Institut and TU Muenchen, Garching, Germany
  • M. Bina

    • Universita di Milano, Milano, Italy
  • J. J. Garcia-Ripoll

    • Instituto de Fisica Fundamental, CSIC, Madrid, Spain
  • E. Solano

    • Universidad del Pais Vasco and Ikerbasque Foundation, Bilbao, Spain