Tobias Gehring

Tobias Gehring is an Associate Professor in the Department of Physics at the Technical University of Denmark (DTU). He is affiliated with the Quantum Physics and Information Technology research groups and actively contributes to the Center for Quantum Technologies and the Center for Macroscopic Quantum States. His contact information includes the phone number +4593511649 and the email tobias.gehring@fysik.dtu.dk. He can be reached at Fysikvej, 307, 262, 2800 Kgs. Lyngby, Denmark.

His research interests encompass quantum key distribution (QKD), continuous variable systems, squeezed light applications, and high-speed quantum technologies. He investigates filter shape optimization for noise reduction in QKD, quantum metrology for gravitational wave detection, and the integration of photonic-electronic systems to advance communication networks. Tobias also explores composable security frameworks in finite-size key generation and quantum-enhanced interferometry for foundational physics experiments.

Tobias Gehring's recent work trends emphasize practical implementations of quantum communication protocols and fundamental physics applications. His projects include developing real-time quantum random number generators and optimizing QKD systems for higher bandwidth and security. He collaborates on applying quantum techniques to biomolecule detection and multi-user QKD networks.

As a supervisor, Tobias is involved in multiple PhD projects:

• Quantum Communication and Co-Existence with Classical Communication (PhD Student: F. Sirovich, 01/02/2025–31/01/2028)
• Quantum information security and randomness certification (PhD Student: M. I. Moreno Babuglia, 01/09/2024–31/08/2027)
• Long Distance Device-Independent Quantum Key Distribution (PhD Student: E. B. Klarlund, 15/01/2024–14/01/2027)
• Quantum-enhanced biomolecule detection (PhD Student: M. F. Schmidt, 01/01/2024–31/12/2026)
• Multi-user quantum key distribution (PhD Student: R. Zhang, 01/11/2022–01/05/2026, Main Supervisor)

He collaborates through the Center for Quantum Technologies and Center for Macroscopic Quantum States, fostering interdisciplinary research in quantum physics and technology.