The Qubit Control Module (QCM) is specifically engineered to be state-of-the-art in generating pulses in the baseband regime up to 400 MHz to replace conventional AWGs. The core of QCM’s technology lies in the Q1 advanced sequence processors and a high-end analog front-end to support quantum computing experiments. The highest channel density is assured with 4 analog outputs and 4 digital outputs per module, to form a massively scalable system by incorporating 80 AWG channels in a single 19” mainframe.

Pulses are generated in real-time by uploading waveforms in 16k wave memory and shaping the outputs by amplitude, offset, modulation frequency, and phase. Pulses can be defined in a 1 ns time grid, and the pulse parameters can be updated on the nanosecond scale. Orders of magnitude speedups are achieved by avoiding software-controlled loops and repeated wave uploading. The QCM module seamlessly unifies with other modules within the Cluster mainframe via our proprietary SYNQ and LINQ protocols. Synchronized start of all channels are guaranteed below 1 ns accuracy and the fast scalable feedback is achieved within ∼ 350 ns for active reset and error mitigation algorithms.