120 citations
- Aalto UniversityFI2 papers
- National Institute of Standards and TechnologyUS2 papers
- VTT Technical Research Centre of FinlandFI2 papers
- Bavarian Academy of Sciences and HumanitiesDE1 paper
- Fermi National Accelerator LaboratoryUS1 paper
- Harvard UniversityUS1 paper
- IBM Research - Thomas J. Watson Research CenterUS1 paper
- IBM (United States)US1 paper
- Institute for Cross-Disciplinary Physics and Complex SystemsES1 paper
- IQM (Finland)FI1 paper
- Keysight Technologies (United States)US1 paper
- National University of SingaporeSG1 paper
7 papers
Dynamics of a dispersively coupled transmon qubit in the presence of a noise source embedded in the control line
Antti Vaaranta, Marco Cattaneo, Russell E. Lake
We describe transmon qubit dynamics in the presence of noise introduced by an impedance-matched resistor () that is embedded in the qubit control line. To obtain the…
Microwave calibration of qubit drive line components at millikelvin temperatures
Slawomir Simbierowicz, Volodymyr Y. Monarkha, Suren Singh +3
Systematic errors in qubit state preparation arise due to non-idealities in the qubit control lines such as impedance mismatch. Using a data-based methodology of short-open-load ca…
Characterizing cryogenic amplifiers with a matched temperature-variable noise source
Slawomir Simbierowicz, Visa Vesterinen, Joshua Milem +7
We present a cryogenic microwave noise source with a characteristic impedance of 50 , which can be installed in a coaxial line of a cryostat. The bath temperature of the noise s…
Bolometer operating at the threshold for circuit quantum electrodynamics
R. Kokkoniemi, J. -P. Girard, D. Hazra +7
Radiation sensors based on the heating effect of the absorbed radiation are typically relatively simple to operate and flexible in terms of the input frequency. Consequently, they…
Overlap junctions for superconducting quantum electronics and amplifiers
Mustafa Bal, Junling Long, Ruichen Zhao +10
Due to their unique properties as lossless, nonlinear circuit elements, Josephson junctions lie at the heart of superconducting quantum information processing. Previously, we demon…
Active protection of a superconducting qubit with an interferometric Josephson isolator
Baleegh Abdo, Nicholas T. Bronn, Oblesh Jinka +8
Nonreciprocal microwave devices play several critical roles in high-fidelity, quantum-nondemolition (QND) measurement schemes. They separate input from output, impose unidirectiona…