A scalable control system for a superconducting adiabatic quantum optimization processor

TL;DR

This paper presents a scalable control system for superconducting quantum processors, capable of independently managing 64 flux biases with minimal wiring, facilitating the development of large-scale adiabatic quantum optimization hardware.

Contribution

The authors designed and demonstrated a scalable, integrated control system for superconducting quantum devices, enabling independent flux biasing with minimal control lines.

Findings

Successfully operated a 64-flux-bias control system

Demonstrated minimal wiring complexity for scalability

Validated control system for superconducting quantum circuits

Abstract

We have designed, fabricated and operated a scalable system for applying independently programmable time-independent, and limited time-dependent flux biases to control superconducting devices in an integrated circuit. Here we report on the operation of a system designed to supply 64 flux biases to devices in a circuit designed to be a unit cell for a superconducting adiabatic quantum optimization system. The system requires six digital address lines, two power lines, and a handful of global analog lines.