An Optimal Tunable Josephson Element for Quantum Computing

Details An Optimal Tunable Josephson Element for Quantum Computing An Optimal Tunable Josephson Element for Quantum Computing

2008-05-07

arxiv.org/abs/0805.0979v2

F. Chiarello, M. G. Castellano, G. Torrioli, S. Poletto, C. Cosmelli, P. Carelli, D. V. Balashov, M. I. Khabipov, e A. B. Zori

Physics

Quantum Physics

3 pages, 4 figures

Scientific paper

10.1063/1.2960338

We introduce a three-junction SQUID that can be effectively used as an optimal tunable element in Josephson quantum computing applications. This device can replace the simple dc SQUID generally used as tunable element in this kind of applications, with a series of advantages for the coherence time and for the tolerance to small errors. We study the device both theoretically and experimentally at 4.2 K, obtaining a good agreement between the results.

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