110 citations · 306 across the 15 of their papers we have counts for
6 papers · 1 filter
Coherent oscillations in a superconducting tunable flux qubit manipulated without microwaves
S. Poletto, F. Chiarello, M. G. Castellano +6
We experimentally demonstrate the coherent oscillations of a tunable superconducting flux qubit by manipulating its energy potential with a nanosecond-long pulse of magnetic flux.…
Catastrophe observation in a Josephson junction system
M. G. Castellano, F. Chiarello, R. Leoni +9
We report on a direct quantitative comparison between Thom's general catastrophe theory for systems presenting discontinuous behavior and experimental reality. It is demonstrated t…
Characterization of a fabrication process for the integration of superconducting qubits and RSFQ circuits
Maria Gabriella Castellano, Leif Gronberg, Pasquale Carelli +7
In order to integrate superconducting qubits with rapid-single-flux-quantum (RSFQ) control circuitry, it is necessary to develop a fabrication process that fulfills at the same tim…
Superconducting tunable flux qubit with direct readout scheme
Fabio Chiarello, Pasquale Carelli, Maria Gabriella Castellano +6
We describe a simple and efficient scheme for the readout of a tunable flux qubit, and present preliminary experimental tests for the preparation, manipulation and final readout of…
Controllable Flux Coupling for the Integration of Flux Qubits
C. Cosmelli, M. G. Castellano, F. Chiarello +4
We show a novel method for controlling the coupling of flux-based qubits by means of a superconducting transformer with variable flux transfer function. The device is realized by i…
Microwave-induced thermal escape in Josephson junctions
N. Gronbech-Jensen, M. G. Castellano, F. Chiarello +5
We investigate, by experiments and numerical simulations, thermal activation processes of Josephson tunnel junctions in the presence of microwave radiation. When the applied signal…