By Shane Caldwell
Publication Date: 2025-11-17 22:31:00
Quantum computing is entering an era where progress will be driven by the integration of accelerated computing with quantum processors. The hardware that controls and measures a quantum processing unit (QPU) faces demanding computational requirements—from real-time calibration to quantum error-correction (QEC) decoding. Useful quantum applications will require QEC and calibration at scales only addressable by tightly integrating the state of the art in accelerated computing.
NVIDIA NVQLink brings accelerated computing into the quantum stack, enabling today’s GPU superchips to support the online workloads of the QPU itself.
NVQLink is an open platform architecture that tightly couples a conventional supercomputing host with a quantum system controller (QSC). It is designed to work with existing control systems already used across the industry—including superconducting, trapped-ion, photonic, or spin-based—and to do so without constraining how QPU and controller builders innovate. The goal is simple but transformative: to make the supercomputing node a native part of the QPU environment, accelerating the ability of quantum hardware to compute.
NVQLink system and software architecture
The NVQLink architecture defines a machine model known as the Logical QPU (Figure 1). It’s a complete system, including the physical qubits, their control and readout electronics, and the compute resources needed for online workloads such as QEC decoding and…
