An analysis method for asymmetric resonator transmission applied to superconducting devices
By M. Khalil, M. Stoutimore, F. Wellstood, K. Osborn. 2011
286 citations recorded by the source corpus.
We examine the transmission through nonideal microwave resonant circuits. The general analytical resonance line shape is derived for both inductive and capacitive coupling with mismatched input and output transmission impedances, and it is found that, for certain non-ideal conditions, the line shape is asymmetric. We describe an analysis method for extracting an accurate internal quality factor (Qi), the diameter correction method (DCM), and compare it to the conventional method used for millikelvin resonator measurements, the φ rotation method (φRM). We analytically find that the φRM deterministically overestimates Qi when the asymmetry of the resonance line shape is high, and that this error is eliminated with the DCM. A consistent discrepancy between the two methods is observed when they are used to analyze both simulations from a numerical linear solver and data from asymmetric coplanar superconducting thin-film resonators.
Subfields: Astronomy and Astrophysics, Condensed Matter Physics, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/4dd92602edd76df7858714be4debd76c0fea9e0c
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
- B. Kannan
- William D. Oliver
- Aziza Almanakly
- Youngkyu Sung
- Jochen Braumuller
- A. Melville
- A. D. Paolo
- D. Rower
Citations in the corpus
- High Kinetic Inductance Superconducting Nanowire Resonators for Circuit QED in a Magnetic Field (2015, unknown): “[25] to the data allows us to extract the resonance frequency and the coupling and intrinsic quality factors [16,28].”
- On-demand directional microwave photon emission using waveguide quantum electrodynamics (2022, background): “For low powers, we observe that |S21| slightly exceeds unity, which we attribute to impedance mismatches in our experimental setup [58, 59].”