QUADRATURE - Scalable Multi-chip Quantum Computing Architectures

QUADRATURE stands for "Scalable Multi-Chip Quantum Architectures Enabled by Cryogenic Wireless/Quantum-Coherent Network-in-Package" and is an EU-funded project that aims to take a bold step towards creating post-NISQ massive quantum processors through the development of scalable architectures with multiple quantum processor cores (Qcores) interconnected via quantum-coherent links within the cryogenic package. Indeed, the QUADRATURE project focuses upon the grand challenge of scalability in quantum computers from an architectural or full-stack standpoint. We are aiming to explore the feasibility of architectures composed of multiple Qcores that allow to scale up quantum computing systems. This is enabled by networks-in-a-package with a dual character that includes a quantum-coherent link for quantum information transfers coexisting with a cryogenic wireless communication network for exchanging classical data and synchronization.