Ground State Ventures Leads Arq Quantum’s $1.4M Pre-Seed Round

Ground State Ventures has led a $1.4 million pre-seed round for Arq Quantum Technologies, indicating early investor confidence in the development of quantum internet infrastructure. The Barcelona-based company, a recent spinout, reports achieving the first transmission of light-matter entanglement over tens of kilometers of fiber within a metro network, a critical step toward practical long-distance quantum communication. Arq Quantum Technologies aims to build the foundational telecommunication hardware necessary to connect quantum computers and sensors, creating a network for distributing resources unavailable to classical technology. “Having them on board gives us much more confidence in going forward,” says co-founder Samuele Grandi, referring to the support of Ground State Ventures and their extensive network within the quantum ecosystem.

Arq Quantum Technologies Secures $1.4M for Quantum Internet Foundation

Arq Quantum Technologies recently secured $1.4 million. The Barcelona-based spinout is focused on building the foundational hardware for a future quantum network, specifically a quantum repeater designed to enable reliable, long-distance quantum communication at a reduced cost compared to existing approaches. This transmission of entanglement over significant distances represents a crucial step toward realizing practical, long-range quantum communication capabilities. According to Samuele Grandi, co-founder of Arq Quantum Technologies, the company aims to establish a network distributing a novel resource unavailable to classical technology. The envisioned quantum internet will not compete with conventional networks for bandwidth, but instead facilitate applications like connecting geographically separated quantum computers, allowing users to expand processing capacity while maintaining secure connections. Beyond computation, the technology could also enhance secure communication and optimization algorithms leveraging the unique properties of quantum entanglement.

The venture firm’s experience within the quantum ecosystem, coupled with its broader network of telecommunications contacts, is expected to accelerate the development and potential commercialization of Arq’s quantum repeater technology. The company focuses on establishing the hardware necessary to connect quantum devices, forming the basis of a fundamentally new type of network with applications extending beyond current technological limitations.

Co-founders Samuele Grandi and Emanuele Distante are focused on building reliable, long-distance connections, aiming for solutions that are both faster and more cost-effective than current alternatives. Their work centers on a quantum repeater, a crucial component for extending the range of quantum communication. Beyond simply achieving transmission, Arq Quantum Technologies has also developed the first multiplexed, telecom-compatible quantum repeater and a quantum gate between remote atoms in optical cavities. These advancements address the challenge of maintaining quantum states over extended distances, a problem that plagues traditional signal amplification methods. The envisioned quantum internet isn’t intended to compete with classical networks for bandwidth, but rather to enable applications inaccessible to conventional technology; the unique properties of entanglement could revolutionize secure communication and optimization tasks.