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TT: Fachverband Tiefe Temperaturen

TT 30: Superconductivity - Poster Session

TT 30.53: Poster

Monday, March 31, 2014, 15:00–19:00, P2

Interference effects in superconducting coplanar waveguide structures — •J. Goetz¹, P. Summer^1,2, H.P. Gürtner^1,2, M.J. Schwarz¹, P. Eder¹, F. Wulschner¹, F. Deppe^1,2, A. Marx¹, and R. Gross^1,2 — ¹Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, Garching — ²Physik Department, TU München, Garching

The freedom in designing superconducting coplanar waveguide (CPW) structures allows for the on-chip creation of electromagnetic fields with well defined spatial intensity distributions. Here we show the precise control of interfering fields which can be used for the control of gradiometer type tunable flux qubits. In addition we study the loss channels which our antenna structures add to CPW resonators. Our setup can be used to explore the manifold physics of gap tunable flux qubits coupled to CPW resonators.

This work is supported by the DFG via SFB 631, the Excellence Initiative via NIM, as well as by the EU-projects CCQED and PROMISCE.