392 citations · 1.5k across the 16 of their papers we have counts for
16 papers
Suppression of the critical current of a balanced SQUID
Antti Kemppinen, Antti J. Manninen, Mikko Möttönen +3
We present an experimental study of the magnetic flux dependence of the critical current of a balanced SQUID with three Josephson junctions in parallel. Unlike for ordinary dc SQUI…
Experimental determination of the Berry phase in a superconducting charge pump
Mikko Mottonen, Juha J. Vartiainen, Jukka P. Pekola
We present the first measurements of the Berry phase in a superconducting Cooper pair pump. A fixed amount of Berry phase is accumulated to the quantum-mechanical ground state in e…
Hybrid single-electron transistor as a source of quantized electric current
Jukka P. Pekola, Juha J. Vartiainen, Mikko Mottonen +3
The basis of synchronous manipulation of individual electrons in solid-state devices was laid by the rise of single-electronics about two decades ago. Ultra-small structures in a l…
Nanoampere pumping of Cooper pairs
Juha J. Vartiainen, Mikko Mottonen, Jukka Pekola +1
We have employed a tunable Cooper-pair transistor, the sluice, with radio frequency control to pump current over a resistive circuit. We find that the charge transferred per pumpin…
Experimental Designs for Binary Data in Switching Measurements on Superconducting Josephson Junctions
Juha Karvanen, Juha J. Vartiainen, Andrey Timofeev +1
We study the optimal design of switching measurements of small Josephson junction circuits which operate in the macroscopic quantum tunnelling regime. Starting from the D-optimalit…
Measurement scheme of the Berry phase in superconducting circuits
Mikko Mottonen, Jukka P. Pekola, Juha J. Vartiainen +2
We present a measurement scheme for observing the Berry phase in a flux assisted Cooper pair pump - the Cooper pair sluice. In contrast to the recent experiments, in which the slui…