Speaker
Ms
Matilda Peruzzo
(Institute of Science and Technology Austria)
Description
Characteristic impedance in superconducting quantum circuits determines whether the ground state wavefunction is dominated by charge or phase fluctuations. The crossover occurs at RQ = 6.45 kΩ above which the charge fluctuations are suppressed below 2e-. Most interesting is the behavior of the Josephson junction (JJ), which acts as a non-linear inductor at low impedance and as a non-linear capacitor in the opposite limit. We explore this limit by shunting the JJ with a geometric inductor formed a superconducting high density planar coil. This element maintains a single uninterrupted wavefunction and offers high reproducibility, linearity and the ability to couple qubits magnetically.
Primary author
Ms
Matilda Peruzzo
(Institute of Science and Technology Austria)
Co-authors
Mr
Andrea Trioni
(Institute of Science and Technology Austria)
Mr
Johannes Fink
(Institute of Science and Technology Austria)
Mr
Farid Hassani
(Institute of Science and Technology Austria)
