Detection of a persistent-current qubit by resonant activation
arXiv:cond-mat/0405024 · doi:10.1103/PhysRevB.70.100501
Abstract
We present the implementation of a new scheme to detect the quantum state of a persistent-current qubit. It relies on the dependency of the measuring Superconducting Quantum Interference Device (SQUID) plasma frequency on the qubit state, which we detect by resonant activation. With a measurement pulse of only 5ns, we observed Rabi oscillations with high visibility (65%).
4 pages, 4 figures, submitted to PRB Rapid Com