Arq Quantum Technologies has raised $1.4M in pre-seed funding to build hardware for the future quantum internet. The Barcelona-based deep-tech startup is developing massively multiplexed, solid-state quantum memories based on rare-earth–doped crystals.
Ground State Ventures and Big Sur Ventures backed the round. Arq's technology is aimed at enabling scalable quantum repeater nodes for long-distance secure communication and distributed quantum computing.

















