165 citations · 697 across the 9 of their papers we have counts for
9 papers
Direct observation of the thickness distribution of ultra thin AlOx barrier in Al/AlOx/Al Josephson junctions
L. J. Zeng, S. Nik, T. Greibe +3
We show that less than 10% of the barrier area dominates the electron tunneling in state-of-art Al/AlOx/Al Josephson junctions. They have been studied by transmission electron micr…
Proposal for a coherent quantum memory for propagating microwave photons
M. Afzelius, N. Sangouard, G. Johansson +2
We describe a multi-mode quantum memory for propagating microwave photons that combines a solid-state spin ensemble resonantly coupled to a frequency tunable single-mode microwave…
Coupling of an erbium spin ensemble to a superconducting resonator
Matthias U. Staudt, Io-Chun Hoi, Philip Krantz +9
A quantum coherent interface between optical and microwave photons can be used as a basic building block within a future quantum information network. The interface is envisioned as…
Are pinholes the cause of excess current in superconducting tunnel junctions? A study of Andreev current in highly resistive junctions
Tine Greibe, Markku P. V. Stenberg, C. M. Wilson +3
In highly resistive superconducting tunnel junctions, excess subgap current is usually observed and is often attributed to microscopic "pinholes" in the tunnel barrier. We have stu…
Photon generation in an electromagnetic cavity with a time-dependent boundary
C. M. Wilson, T. Duty, M. Sandberg +3
We report the observation of photon generation in a microwave cavity with a time-dependent boundary condition. Our system is a microfabricated quarter-wave coplanar waveguide cavit…
Fast readout of a single Cooper-pair box using its quantum capacitance
F. Persson, C. M. Wilson, M. Sandberg +1
We have fabricated a single Cooper-pair box (SCB) together with an on-chip lumped element resonator. By utilizing the quantum capacitance of the SCB, its state can be read out by d…