Building quantum-secure communication systems

Research context: Future-proof encryption for critical telecommunication infrastructures such as governmental telecommunication networks or data center interconnects.

Research areas: Timebin-phase BB84 quantum key distribution (QKD), quantum-channel-based synchronization methods, single-photon detector modelling.

Developed 3 novel quantum-channel-based synchronization methods to greatly increase flexibility and resilience when using QKD systems in deployed fiber network.

Novel resynchronization method allows for multi-minute quantum channel interruptions and fiber rerouting with >100 km length difference during live operation.

Demonstrated system in 4 field experiments, involving government agencies such as the BMBF (now BMFTR), BSI, and Bundesdruckerei. See here, here, here, and here.

Demonstrated operation over 44 dB quantum channel loss.

Project management for the project QuNET+ProQuake, which aims at developing an open QKD post-processing stack.

Published 2 journal papers, 8 conference papers, filed 3 patents, and supervised 2 bachelor and 3 master theses. See Publications and Talks for details.

Implemented a digital ledger used for the accounting of >2000 customers.

Implemented semi-automated banking interface used to execute thousands of payments (>1 million EUR) every month.

Lead a committee of >30 members.

Specialized in modern optics with additional classes in mathematics.

Thesis in experimental laser spectroscopy: "Isotope Shift of ${}^{10,11}\mathrm{B}$ in the $2\,{}^2\mathrm{P}_{1/2} \to 3\,{}^2\mathrm{S}_{1/2}$ Transition determined by Resonance Ionization Mass Spectrometry".

Improved precision of isotope shift by a factor of approx. 100 compared to prior work, establishing it as a benchmark for ab initio nuclear shell models.

Results published in PRL, 122, 182501.

Certified as trainer through AIESEC's 5-day train-the-trainers program for knowledge- and experience-based training.

Regularly gave trainings on sales, soft skills.

Organized team kick-offs and sessions for personal development.

Built and lead a team of 8 members.

Responsible for all incoming exchange activities for internships at AIESEC in Darmstadt.

Organized 21 internships at local companies in Darmstadt for interns from all over the world.

Experience in cold calling, sales, process organization, process optimization, and team leadership.

Taught exercise classes for 10 theory courses: Methods of Calculus, Introduction to Theoretical Physics, Classical Mechanics, Quantum Mechanics (2x), Electrodynamics, Statistical Physics, Computational Physics, Experimental Physics I, Technical Mechanics for Mechanical Engineers.