368 citations · 1k across the 28 of their papers we have counts for
3 papers · 1 filter
Characterising superconducting filters using residual microwave background
J. S. Lehtinen, E. Mykkänen, A. Kemppinen +3
A normal metal - superconductor hybrid single-electron trap with tunable barrier is utilized as a tool for spectrum analysis at the extremely low signal levels, using only well fil…
Traceable Coulomb Blockade Thermometry
Ossi Hahtela, Emma Mykkanen, Antti Kemppinen +6
We present a measurement and analysis scheme for determining traceable thermodynamic temperature at cryogenic temperatures using Coulomb blockade thermometry. The uncertainty of th…
Reducing current noise in cryogenic experiments by vacuum-insulated cables
E. Mykkänen, J. S. Lehtinen, A. Kemppinen +4
We measure the current noise of several cryogenic cables in a pulse tube based dilution refrigerator at frequencies between about 1~mHz and 50~kHz. We show that vibration-induced n…