Arq Quantum: Quantum Repeater Development Begins

Arq Quantum Technologies has emerged from a period of incubation to publicly launch its efforts in developing critical hardware for a future quantum internet. The Barcelona-based deep-tech start-up, incorporated last September, is concentrating on advancing rare-earth-based quantum repeater technology initially developed at ICFO by Hugues de Riedmatten’s group. This technology aims to create massively multiplexed quantum network nodes, essential components for achieving high-speed and affordable quantum connections. Arq Quantum Technologies shared the statement, “We are here, we’re starting, and we look forward to sharing more soon,” following recognition as a Deep Tech Pioneer in the Hello Tomorrow Global Challenge among over 4800 companies and selection for the Horizon Deep Tech Summit. Arq’s work will also directly support the Quantum Internet Alliance project, contributing to the construction of a prototype quantum network.

Rare-Earth Repeaters for Massively Multiplexed Quantum Networks

Rare-earth ions are being utilized to enhance signal transmission in massively multiplexed quantum network nodes, representing a fundamental building block for achieving high-speed, low-cost quantum internet connectivity. “Our focus is to push the rare-earth–based quantum repeater technology… toward massively multiplexed quantum network nodes,” stated Arq Quantum Technologies in a LinkedIn post, detailing their core objective. Arq’s development efforts are not isolated; their work will also contribute to the Quantum Internet Alliance (QIA) project, specifically focused on linking quantum hardware and constructing a functional prototype quantum network. The QIA expressed excitement about the collaboration, stating, “We are excited to work with you in building a prototype quantum network!” Arq plans to expand its operations in Barcelona over the coming months, signaling a commitment to scaling up activity and further refining this crucial quantum networking technology.

Arq Quantum Technologies Selected for Deep Tech Recognition

Arq Quantum Technologies, a Barcelona-based deep-tech start-up, formally incorporated last September following an initial period of development, and is now increasing its public profile as it advances hardware for prospective quantum internet infrastructure. The company’s core work centers on rare-earth, based quantum repeater technology originating from research at ICFO in Hugues de Riedmatten’s group, with the goal of creating the foundational components for a faster and more affordable quantum internet connection through massively multiplexed quantum network nodes. The start-up is poised to expand operations within Barcelona in the coming months, building on its initial momentum and collaborative efforts. Arq Quantum Technologies stated, “We are here, we’re starting, and we look forward to sharing more soon.” The company anticipates sharing further developments as it progresses, signaling a commitment to advancing the practical realization of a quantum internet. Arq’s emergence reflects a growing international interest in quantum networking technologies and the development of the necessary hardware to support them.