AKKA Technologies : Quantum Computing Infrastructure

QUANTUM COMPUTING INFRASTRUCTURE

Achieving quantum advantage with today's quantum processors requires a real-time, classical control infrastructure. Within the ATIQ project, AKKA & Modis tackle the scalability and robustness when distributing and dynamically triggering control sequences for a quantum processor with low latency within a modular electronics setup. Utilizing system-on-a-chip enables full connectivity via several interfaces and low-latency, high-bandwidth data exchange to build a scalable, interconnected, real-time control architecture. Embedded data processing capabilities open the way for feedback-loops and dynamic control sequences as required for quantum error correction techniques.

ARCHITECTURE: For ATIQ, we are designing a quantum computer architecture comprised of classical control hardware and software to enable continuous operation of trapped ion quantum processors. The hardware consists of a main controller, backplane, and drive electronics. The software includes a hardware- specific compiler, kernel, and task manager.

Build around system-on-a-chip for multiplexed, real-time drive and analysis capabilities

Software stack for compilation, hardware management, and dynamic sequencing

Triggering of multiplexed sequences and TTL signals

Embedded processing units for feedback loops with multi-branching

Full connectivity via multiple (non-) real-time, high-bandwidth interfaces

Low latency: 20 ns sampling, jitter < 1 µs

REAL-TIME PROCESSING: All electronic components are built around system- on-a-chip to enable flexible, multiplexed sequence generation in a fully modular setup. The embedded processing units enable real-time processing capabilities and ensure full connectivity.

Flexibility due to programmable CPU und FPGA cores

Scalability: generation and driving of massively parallel sequences

Connectivity via several (non-) real-time, high-bandwidth interfaces

Modularity: individual components can work solitary or in interconnected system

Feedback-loops through real-time processing of measurement data

The quantum computer architecture of AKKA & Modis coalesces high-precision, classical control electronics with a full software stack to operate state-of-the-art quantum processor chips. This architecture enables continuous operation, feedback-controlled and dynamic sequences, as well as the use of error correction techniques, and connectivity to classical, high performance computing systems. Such a unifying system is required to unleash the quantum advantage.