16 citations · 30 across the 5 of their papers we have counts for
5 papers
Probing the TLS Density of States in SiO Films using Superconducting Lumped Element Resonators
S. T. Skacel, Ch. Kaiser, S. Wuensch +6
We have investigated dielectric losses in amorphous SiO thin films under operating conditions of superconducting qubits (mK temperatures and low microwave powers). For this purpose…
Spectroscopy of a fractional Josephson vortex molecule
U. Kienzle, J. M. Meckbach, K. Buckenmaier +8
In long Josephson junctions with multiple discontinuities of the Josephson phase, fractional vortex molecules are spontaneously formed. At each discontinuity point a fractional Jos…
Dependence of the Macroscopic Quantum Tunneling Rate on Josephson Junction Area
Christoph Kaiser, Roland Schäfer, Michael Siegel
We have carried out systematic Macroscopic Quantum Tunneling (MQT) experiments on Nb/Al-AlO_x/Nb Josephson junctions (JJs) of different areas. Employing on-chip lumped element indu…
Quantum Phase Dynamics in an LC shunted Josephson Junction
Christoph Kaiser, Thilo Bauch, Floriana Lombardi +1
We have studied both theoretically and experimentally how an LC series circuit connected in parallel to a Josephson junction influences the Josephson dynamics. The presence of the…
Aluminum Hard Mask Technique for the Fabrication of High-Quality Submicron Nb/Al-AlOx/Nb Josephson Junctions
Christoph Kaiser, J. M. Meckbach, K. Ilin +4
We have developed a combined photolithography and electron-beam lithography fabrication process for sub-\mum to \mum-size Nb/Al-AlOx/Nb Josephson junctions. In order to define the…