168 citations · 745 across the 15 of their papers we have counts for
6 papers · 1 filter
Two-level systems in superconducting quantum devices due to trapped quasiparticles
S. E. de Graaf, L. Faoro, L. B. Ioffe +6
A major issue for the implementation of large scale superconducting quantum circuits is the interaction with interfacial two-level system defects (TLS) that leads to qubit relaxati…
Slow noise processes in superconducting resonators
Jonathan Burnett, Tobias Lindström, Mark Oxborrow +4
Slow noise processes, with characteristic timescales ~1s, have been studied in planar superconducting resonators. A frequency locked loop is employed to track deviations of the res…
On the properties of superconducting planar resonators at mK temperatures
T. Lindstrom, J. E. Healey, M. S. Colclough +2
Planar superconducting resonators are now being increasingly used at mK temperatures in a number of novel applications. They are also interesting devices in their own right since t…
Circuit QED with a Flux Qubit Strongly Coupled to a Coplanar Transmission Line Resonator
T. Lindstrom, C. H. Webster, A. Ya. Tzalenchuk +3
We propose a scheme for circuit quantum electrodynamics with a superconducting flux-qubit coupled to a high-Q coplanar resonator. Assuming realistic circuit parameters we predict t…
Degenerate ground state and anomalous flux hysteresis in an YBa2Cu3O7 grain boundary r.f. SQUID
C. H. Gardiner, R. A. M. Lee, J. C. Gallop +3
We report measurements of the flux hysteresis curves and trapped flux distribution in an YBa2Cu3O7 r.f. SQUID containing two closely spaced grain boundary Josephson junctions in pa…
Dynamical effects of an unconventional current-phase relation in YBCO dc-SQUIDs
T. Lindstrom, S. A. Charlebois, A. Ya. Tzalenchuk +3
The predominant d-wave pairing symmetry in high temperature superconductors allows for a variety of current-phase relations in Josephson junctions, which is to a certain degree fab…