228 citations · 4.3k across the 105 of their papers we have counts for
6 papers · 1 filter
Strong tunable coupling between a superconducting charge and phase qubit
A. Fay, E. Hoskinson, F. Lecocq +4
We have realized a tunable coupling over a large frequency range between an asymmetric Cooper pair transistor (charge qubit) and a dc SQUID (phase qubit). Our circuit enables the i…
Electron-phonon coupling and longitudinal mechanical-mode cooling in a metallic nanowire
F. W. J. Hekking, A. O. Niskanen, J. P. Pekola
We investigate electron-phonon coupling in a narrow suspended metallic wire, in which the phonon modes are restricted to one dimension but the electrons behave three-dimensionally.…
Rabi-like oscillations of an anharmonic oscillator: classical versus quantum interpretation
Julien Claudon, Alex Zazunov, Frank W. J. Hekking +1
We have observed Rabi-like oscillations in a current-biased dc SQUID presenting enhanced coherence times compared to our previous realization \cite{Claudon_PRL04}. This Josephson d…
Quantum charge diffusion in underdamped Josephson junctions and superconducting nanowires
A. Zazunov, N. Didier, F. W. J. Hekking
The effect of quantum fluctuations on the current-voltage characteristics of Josephson junctions and superconducting nanowires is studied in the underdamped limit. Quantum fluctuat…
Normal metal - superconductor tunnel junction as a Brownian refrigerator
J. P. Pekola, F. W. J. Hekking
Thermal noise generated by a hot resistor (resistance ) can, under proper conditions, catalyze heat removal from a cold normal metal (N) in contact with a superconductor (S) via…
Non-abelian superconducting pumps
Valentina Brosco, Rosario Fazio, F. W. J. Hekking +1
Cooper pair pumping is a coherent process. We derive a general expression for the adiabatic pumped charge in superconducting nanocircuits in the presence of level degeneracy and re…