3 papers
cond-mat.supr-con2026
Gap Engineered Superconducting Multilayer Nanobridge Josephson Junctions
Giuseppe Colletta, Susan Johny, Hua Feng +3
We report the realization of multilayer three-dimensional nanobridge Josephson junctions based on Nb/NbN and Nb/TiN superconducting stacks fabricated using electron-beam lithograph…
quant-ph2026
Modelling Realistic Multi-layer devices for superconducting quantum electronic circuits
Giuseppe Colletta, Susan Johny, Jonathan A. Collins +2
In this work, we present a numerical model specifically designed for 3D multilayer devices, with a focus on nanobridge junctions and coplanar waveguides. Unlike existing numerical…
quant-ph2025
Quasiparticle Dynamics in NbN Superconducting Microwave Resonators at Single Photon Regime
Paniz Foshat, Shima Poorgholam-khanjari, Valentino Seferai +7
Exchanging energy below the superconducting gap introduces quasiparticle energy distributions in superconducting quantum circuits, which will be responsible for their decoherence.…