- document
-
Peltonen, J. T. (author), Coumou, P.C.J.J. (author), Peng, Z. (author), Klapwijk, T.M. (author), Tsai, J. S. (author), Astafiev, O. V. (author)We report development and microwave characterization of rf SQUID (Superconducting QUantum Interference Device) qubits, consisting of an aluminium-based Josephson junction embedded in a superconducting loop patterned from a thin film of TiN with high kinetic inductance. Here we demonstrate that the systems can offer small physical size, high...journal article 2018
- document
-
Peltonen, J.T. (author), Astafiev, O.V. (author), Korneeva, Y.P. (author), Voronov, B.M. (author), Korneev, A.A. (author), Charaev, I.M. (author), Semenov, A.V. (author), Golt'sman, G.N. (author), Ioffe, L.B. (author), Klapwijk, T.M. (author), Tsai, J.S. (author)We demonstrate evidence of coherent magnetic flux tunneling through superconducting nanowires patterned in a thin highly disordered NbN film. The phenomenon is revealed as a superposition of flux states in a fully metallic superconducting loop with the nanowire acting as an effective tunnel barrier for the magnetic flux, and reproducibly...journal article 2013