A scalable hardware and software control apparatus for experiments with hybrid quantum systems

Area of Science:

• Quantum Physics
• Atomic, Molecular, and Optical Physics

Background:

• Modern quantum experiments rely on computer-controlled electronic channels for managing systems like ultracold atoms and trapped ions.
• Hybrid quantum systems, combining diverse quantum systems with different timescales, present significant control challenges due to increased complexity.

Purpose of the Study:

• To introduce a novel control apparatus designed for the efficient management of complex hybrid quantum systems.
• To provide a scalable and versatile control solution for advanced quantum experiments.

Main Methods:

• Development of a control apparatus based on a network of fast-communicating Field Programmable Gate Arrays (FPGAs).
• Implementation of a hierarchical hardware structure (master-slave boards) and a shared tree-like software architecture for scalability.
• Integration of a user-friendly graphical interface for managing diverse experimental instruments and executing complex control protocols.

Main Results:

• The apparatus enables efficient management of hybrid quantum systems, including atom-ion mixtures.
• The system supports complex protocols like concurrent command loops, multi-variable error function generation, and self-optimization.
• The hardware features FPGAs driving analog/digital I/O and radiofrequency outputs up to 400 MHz.

Conclusions:

• The presented control apparatus offers a scalable and efficient solution for managing hybrid quantum systems.
• The flexible design allows application in various atomic, molecular, and optical physics experiments beyond hybrid systems.