71 citations · 121 across the 5 of their papers we have counts for
5 papers
Characterizing dielectric properties of ultra-thin films using superconducting coplanar microwave resonators
Nikolaj G. Ebensperger, Benedikt Ferdinand, Dieter Koelle +3
We present an experimental approach for cryogenic dielectric measurements on ultra-thin insulating films. Based on a coplanar microwave waveguide design we implement superconductin…
Tunable superconducting two-chip lumped element resonator
Benedikt Ferdinand, Daniel Bothner, Reinhold Kleiner +1
We have fabricated and investigated a stacked two-chip device, consisting of a lumped element resonator on one chip, which is side-coupled to a coplanar waveguide transmission line…
Coupling ultracold atoms to a superconducting coplanar waveguide resonator
H. Hattermann, D. Bothner, L. Y. Ley +6
We demonstrate coupling of magnetically trapped ultracold Rb ground state atoms to a coherently driven superconducting coplanar resonator on an integrated atom chip. We measur…
Improving superconducting resonators in magnetic fields by reduced field-focussing and engineered flux screening
Daniel Bothner, Dominik Wiedmaier, Benedikt Ferdinand +2
We experimentally investigate superconducting coplanar waveguide resonators in external magnetic fields and present two strategies to reduce field-induced dissipation channels and…
Inductively coupled superconducting half wavelength resonators as persistent current traps for ultracold atoms
Daniel Bothner, Martin Knufinke, Helge Hattermann +7
A crucial point in the experimental implementation of hybrid quantum systems consisting of superconducting circuits and atomic ensembles is bringing the two partners close enough t…