Phonon traps reduce the quasiparticle density in superconducting circuits
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DOI: 10.1063/1.5124967
Abstract: Out of equilibrium quasiparticles (QPs) are one of the main sources of decoherence in superconducting quantum circuits, and are particularly detrimental in devices with high kinetic inductance, such as high impedance resonators, qubits, and detectors.… read more here.
Keywords: quasiparticle density; density; reduce quasiparticle; traps reduce ... See more keywords
Nb/a-Si/Nb Josephson junctions for high-density superconducting circuits
Sign Up to like & getrecommendations! Published in 2023 at "Applied Physics Letters"
DOI: 10.1063/5.0148250
Abstract: We present electrical characterization data of sputtered Nb/a-Si/Nb Josephson junctions (JJs) for high-speed and high-density superconducting circuits. Junctions were studied with critical current densities (Jc) ranging from 0.01 to 3 mA/μm2 at 4 K. For junctions deposited… read more here.
Keywords: superconducting circuits; josephson junctions; high density; critical current ... See more keywords