Berlin 2005 – wissenschaftliches Programm
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TT: Tiefe Temperaturen
TT 8: Posters Transport
TT 8.47: Poster
Freitag, 4. März 2005, 14:00–18:00, Poster TU C
Electromagnetic Full-Wave Simulation of a Superconducting Microstrip Resonator — •M. Mariantoni1, M.J. Storcz2, W.D. Oliver3, F.K. Wilhelm2, A. Marx1, and R. Gross1 — 1Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, D-85748 Garching, Germany — 2Physics Department and CeNS, LMU München, D-80333 München, Germany — 3MIT Lincoln Laboratory, Lexington, MA 02420, USA
A fundamental phenomenon in nature is the interaction between light and matter. This process can be observed letting interact a single photon with a single atom. In the last decade several experiments with quantum optical systems have been realized giving rise to a broad research activity in the field called cavity-Quantum-ElectroDynamics (cQED). We propose an experimental realization making use of solid state devices, the role of atom being played by a superconducting flux qubit. The flux qubit interacts with a microwave-photons field inside a cavity. The cavity is fabricated on-chip using a superconducting microstrip resonator. The properties of the microstrip resonator have been simulated making use of a microwave software based on the transmission-line-matrix method. The software has been adapted for simulating correctly superconducting films in the microwave regime. Particular attention has been paid to the internal quality factor of the resonator taking into account residual surface resistances as well as dielectric and radiation losses. Our simulations show that an internal quality factor of about 106 should be achievable. This work is supported by the DFG through SFB 631.