90 citations · 309 across the 8 of their papers we have counts for
8 papers
Quantum dynamics in a camel-back potential of a dc SQUID
E. Hoskinson, F. Lecocq, N. Didier +7
We investigate the quantum dynamics of a quadratic-quartic anharmonic oscillator formed by a potential well between two potential barriers. We realize this novel potential shape wi…
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…
Observation of transition from escape dynamics to underdamped phase diffusion in a Josephson junction
J. M. Kivioja, T. E. Nieminen, J. Claudon +3
We have investigated the dynamics of underdamped Josephson junctions. In addition to the usual crossover between macroscopic quantum tunnelling and thermally activated (TA) behavio…
Evidence of two-dimensional macroscopic quantum tunneling of a current-biased DC-SQUID
F. Balestro, J. Claudon, J. P. Pekola +1
The escape probability out of the superconducting state of a hysteretic DC-SQUID has been measured at different values of the applied magnetic flux. At low temperature, the escape…
Coherent low-energy charge transport in a diffusive S-N-S junction
P. Dubos, H. Courtois, O. Buisson +1
We have studied the current voltage characteristics of diffusive mesoscopic Nb-Cu-Nb Josephson junctions with highly-transparent Nb-Cu interfaces. We consider the low-voltage and h…
First experimental evidence of one-dimensional plasma modes in superconducting thin wires
B. Camarota, F. Parage, F. Balestro +2
We have studied niobium superconducting thin wires deposited onto a SrTiO substrate. By measuring the reflection coefficient of the wires, resonances are observed in the supe…