Eric J. Zhang, Srikanth Srinivasan, et al.
Science Advances
The ability to perform fast, high-fidelity readout of quantum bits (qubits) is essential to the goal of building a quantum computer. However, coupling a fast measurement channel to a superconducting qubit typically also speeds up its relaxation via spontaneous emission. Here, we use impedance engineering to design a filter by which photons may easily leave the resonator at the cavity frequency but not at the qubit frequency. We implement this broadband filter in both an on-chip and off-chip configuration.
Eric J. Zhang, Srikanth Srinivasan, et al.
Science Advances
Baleegh Abdo, Nicholas T. Bronn, et al.
Quantum Science and Technology
Yanbing Liu, Srikanth J. Srinivasan, et al.
New Journal of Physics
Nicholas T. Bronn, Baleegh Abdo, et al.
WOLTE 2016