Qubit ZooDemonstrates fast frequency-multiplexed dispersive readout using readout and filter resonators coupled through a multiconductor transmission line that creates an intrinsic Purcell-suppression notch.
Key Results
- Four-qubit simultaneous readout with a 56-ns integration window.
- Average assignment fidelity of 99.77%; best channel above 99.9%.
- Effective readout linewidths as large as 42 MHz while suppressing the Purcell channel.
Links
- Journal: PRX Quantum
- arXiv: 2409.04967