Baleegh Abdo, Nicholas T. Bronn, et al.
Quantum Science and Technology
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.
Baleegh Abdo, Nicholas T. Bronn, et al.
Quantum Science and Technology
Sebastian Brandhofer, Jinwoong Kim, et al.
DATE 2023
Baleegh Abdo, Nicholas T. Bronn, et al.
Nature Communications
Markus Brink, Jerry M. Chow, et al.
IEDM 2018