The Zurich Instruments SHFQA+ Quantum Analyzer integrates in a single instrument a full real-time readout setup for up to 64 superconducting and spin qubits. The SHFQA+ operates in a frequency range from DC to 8.5 GHz with an instantaneous bandwidth of 1 GHz and without the need for mixer calibration. Each of its 2 or 4 readout channels can analyze up to 16 qubits, 8 qutrits, or 5 ququads. For the 2-channel instrument, this performance requires the SHFQA-16W option.
The SHFQA+ enables multi-state discrimination with optimal signal-to-noise ratio and minimal latency thanks to its advanced sequencer and its low-latency signal processing chain with matched filters and result correlation. The data are transmitted in real-time to other instruments for active qubit reset or global error correction protocols. Controlled through the LabOne software suite comprising the user interface, several APIs and LabOne Q, the SHFQA+ supports quantum computing projects with sizes ranging from a few to several hundreds of qubits.