Zurich Instruments has introduced a new device called the Quantum System Hub (QHub) designed to help engineers scale up their quantum processors to sizes of as many as 300 superconducting qubits. It provides up to 56 Zsync ports that can connect to and coordinate operations with other Zurich Instrument devices such as their SHFQA (Quantum Analyzer), SHFQC (Qubit Controller), SHFSG (Signal Generator), or HDAWG (Arbitrary Waveform Generator) to synchronize up to 448 microwave channels. A key to this technology is the Star Architecture as shown in the picture above. This ensures that the system can have high synchronization accuracy and low feedback latency. These characteristics are important for implementing things like mid-circuit measurement or error correction algorithms.
The QHub can support several different types of qubits including superconducting qubits, spin qubits, superconducting resonator hybrids, NV centers, and multi-level elements such as qutrits and ququads. It is supported by Zurich Instruments own python-based LabOne software which make it easy to optimize instrument settings, generation and uploading of waveforms and synchronizing pulses between multiple instruments.
September 6, 2023