The Quantum Network at the Technical University of Munich (QuaNTUM)
Welcome to the QuaNTUM project page, part of the Professorship of Quantum Communication Systems Engineering (QCS) at TUM. We are working on the development of a cutting-edge local quantum network to connect quantum research groups on the TUM Garching campus. This project represents a critical step toward the global quantum internet and advanced quantum communication systems.
Background: The Need for Quantum Communication
The near-future arrival of quantum computers poses a threat to the public key infrastructure (PKI) currently used to secure internet communications. Classical encryption will be easily compromised by quantum computers. However, quantum communication - particularly through Quantum Key Distribution (QKD) - offers a robust solution that guarantees security against eavesdropping, even by the network operator. This makes quantum communication pivotal to future-proofing digital security.
While large-scale quantum communication networks are still in development, hybrid systems combining fiber and satellite links have already been demonstrated. Over time, as quantum repeaters become feasible, this will lead to a global quantum internet.
The QuaNTUM testbed at TUM
The QuaNTUM project is a local quantum network under development at TUM. Serving as a testbed for Quantum Key Distribution (QKD) and other quantum communication technologies, the network will link research institutes on the Garching campus, allowing secure transmission of quantum information. Over time, it will connect to other quantum networks globally.
The core of the network is a star-shaped fiber structure connecting the institutes. This design allows quantum communication (in the form of photons) to travel between any two network points. The eventual goal is to extend this network to a global scale, using a quantum key distribution satellite that will bridge local networks worldwide.
Technical overview
The QuaNTUM network will consist of seven primary fiber links, each with 48 optical fibers connecting the central node at TUM’s Mechanical Engineering building to various institutes.
Key technical specifications include:
- Seven Core Fiber Links – Each with 48 optical fibers.
- Central Node – At TUM Mechanical Engineering, featuring advanced routing and multiplexing devices.
- Direct Fiber-to-Fiber Connections – For minimal loss and high-efficiency data transmission.
- Polarization Compensation – Ensures the stability of quantum communication.
- Time Synchronization – Synchronization of qubits across the network ensures precise, reliable communication.
The network will eventually integrate with a QKD satellite developed by the QCS group, establishing connections with global quantum communication networks. Additionally, plans to connect to Munich-based research groups will further enhance the scope and capabilities of the network.
User Access, Collaboration, and Funding
User Access:
After the initial test phase, the QuaNTUM network will be open to researchers, including those within the Munich Center for Quantum Science and Technology (MCQST) and the Munich Quantum Valley (MQV). The network will be available for free to academic users conducting experiments related to quantum communication systems.
Collaborations:
We are actively seeking collaborations with industry partners and academic institutions working in the field of quantum communication. Our goal is to create an interdisciplinary platform where researchers from different fields can come together to test new technologies, develop solutions for global quantum networking, and address challenges in the field.
Interested parties are invited to reach out to us to discuss potential partnerships. Contact Prof. Dr. Vogl directly for more information on collaboration opportunities.
Funding:
The QuaNTUM project is made possible by funding from the Munich Quantum Valley (MQV). We are grateful to our funding partners for enabling this ambitious project to take shape.