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Restless Tuneup of High-Fidelity Qubit Gates
M. A. Rol, C. C. Bultink, T. E. O'Brien +11
We present a tuneup protocol for qubit gates with tenfold speedup over traditional methods reliant on qubit initialization by energy relaxation. This speedup is achieved by constru…
Active resonator reset in the nonlinear dispersive regime of circuit QED
C. C. Bultink, M. A. Rol, T. E. O'Brien +8
We present two pulse schemes for actively depleting measurement photons from a readout resonator in the nonlinear dispersive regime of circuit QED. One method uses digital feedback…
Loophole-free Bell test using electron spins in diamond: second experiment and additional analysis
B. Hensen, N. Kalb, M. S. Blok +11
The recently reported violation of a Bell inequality using entangled electronic spins in diamonds (Hensen et al., Nature 526, 682-686) provided the first loophole-free evidence aga…