Suppression of low-frequency charge noise in superconducting resonators by surface spin desorption
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-03577-2
Abstract: Noise and decoherence due to spurious two-level systems located at material interfaces are long-standing issues for solid-state quantum devices. Efforts to mitigate the effects of two-level systems have been hampered by a lack of knowledge… read more here.
Keywords: charge noise; frequency; noise; superconducting resonators ... See more keywords
Frequency-tunable high-Q superconducting resonators via wireless control of nonlinear kinetic inductance
Sign Up to like & getrecommendations! Published in 2019 at "Applied Physics Letters"
DOI: 10.1063/1.5098466
Abstract: Frequency-tunable microwave resonators are in great demand especially in hybrid systems where precise frequency alignment of resonances is required. Here, we present frequency-tunable high-Q superconducting resonators fabricated from thin niobium nitride and niobium titanium nitride… read more here.
Keywords: frequency tunable; frequency; tunable high; high superconducting ... See more keywords
Nonequilibrium Quasiparticle Distribution in Superconducting Resonators: An Analytical Approach
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review Applied"
DOI: 10.1103/physrevapplied.19.054087
Abstract: In the superconducting state, the presence of a finite gap in the excitation spectrum implies that the number of excitations (quasiparticles) is exponentially small at temperatures well below the critical one. Conversely, minute perturbations can… read more here.
Keywords: distribution superconducting; nonequilibrium quasiparticle; quasiparticle distribution; distribution ... See more keywords