346 citations · 1.8k across the 19 of their papers we have counts for
19 papers
Measuring the Decoherence of a Quantronium Qubit with the Cavity Bifurcation Amplifier
M. Metcalfe, E. Boaknin, V. Manucharyan +6
Dispersive readouts for superconducting qubits have the advantage of speed and minimal invasiveness. We have developed such an amplifier, the Cavity Bifurcation Amplifier (CBA) [10…
Dispersive microwave bifurcation of a superconducting resonator cavity incorporating a Josephson junction
E. Boaknin, V. E. Manucharyan, S. Fissette +7
We have observed the dynamical bistability of a microwave superconducting Fabry-Perot cavity incorporating a non-linear element in the form of Josephson tunnel junction. The effect…
RF bifurcation of a Josephson junction: microwave embedding circuit requirements
V. E. Manucharyan, E. Boaknin, M. Metcalfe +3
A Josephson tunnel junction which is RF-driven near a dynamical bifurcation point can amplify quantum signals. The bifurcation point will exist robustly only if the electrodynamic…
Dispersive measurements of superconducting qubit coherence with a fast, latching readout
I. Siddiqi, R. Vijay, M. Metcalfe +4
The "quantronium" is a superconducting qubit consisting of a split Cooper pair box in which a large tunnel junction is inserted. This circuit has a special bias point where the Lar…
Unpaired Electrons in the Heavy-Fermion Superconductor CeCoIn_{5}
M. A. Tanatar, Johnpierre Paglione, S. Nakatsuji +9
Thermal conductivity and specific heat were measured in the superconducting state of the heavy fermion material Ce_{1-x}La_{x}CoIn_{5}. With increasing impurity concentration x, th…
Doping dependence of the superconducting gap in Tl_2Ba_2CuO_{6+delta} from heat transport
D. G. Hawthorn, S. Y. Li, M. Sutherland +12
We present low-temperature thermal conductivity measurements on the cuprate Tl_2Ba_2CuO_{6+delta} throughout the overdoped regime. In the T -> 0 limit, the thermal conductivity due…