Jarn de Jong.
Researcher & Scientist
I work in quantum communication, cryptography & information science
Hi, I'm
About
I am a physicist, a researcher in quantum information science, tech & teaching enthusiast, and I’m passionate about online security, privacy and self-hosting.
In March 2025, I obtained my PhD in quantum information science (QIS), summa cum laude, at the TU Berlin. I did this in the QCC group of Anna Pappa, where I was also employed for the last 5 years. QCC stands for Quantum Communication and Cryptography. Here you can find more info about my thesis.
Research
Originally, (during my MSc. thesis) I researched quantum error correction and fault tolerance. During my PhD, I changed gears and focused on two different topics: anonymous quantum communication and entanglement in quantum networks. Here you can find more info about quantum information science, my research in general, and these topics in particular.
Software development
Both within the scope of my research and in personal projects I like to build software. Most of these projects are hosted on my private Gitea server, but some of these are mirrored to my public Github page. Here you can read some more about this, including a small overview of some of these projects.
Self-hosting
I also like self-hosting some projects. That means I have a server (actually, multiple) running at home, where I host several programs, services and tools. Some of these are intended for use by only me (and are only reachable on my home network or through my own VPN), others are used by friends and family as well. Of course, there’s also the website you are currently visiting, intended for ‘everyone’! For more info and a quick overview, you can see here; I also intend to write some tutorials at some point.
Presenting and teaching
I enjoy teaching, explaining and lecturing. Starting from high school I have always tutored, taught and lectured.
I am a ‘Tweedegraads bevoegd’ qualified physics teacher. This means I am allowed to teach physics in the first 3 years of any Dutch high school (MAVO, HAVO, VWO). The qualification is also acknowledged in other countries.
A non-exhaustive list of my academic talks and presentations can be found here.
Although I’m less active in recent years, I was a top 10 user at the quantum computing stack exchange.
Experiences
I was employed by the TU Berlin as a researcher (Wissenschaftliche Mitarbeiter) in the QCC group of Anna Pappa. Originally this was in the context of my PhD, but after finishing my PhD I stayed for a few more months to finalize projects etc.
Apart from my research, my tasks included:
- Designing and giving lectures
- Supervising BSc. & MSc. students
- Scientific talks
The Quantum Internet Alliance (QIA), an EU-flagship project that aims to create the world’s first quantum internet, built in Europe.
I am currently part of QIA’s Use Case team, where we research and develop use cases for the (future) quantum internet.
My tasks include:
- Developing and simulating use cases
- Writing reports for the European Commission
- Categorisation of quantum networking protocols
- (Brief) interim team lead
I was a visiting researcher in the quantum information team of Laboratoire d’Informatique de Paris 6 at CNRS and Sorbonne Université in Paris.
I presented my previous work, and I started collaborations with various researchers.
I was a soft- and hardware developer at QuTech, where in a team of 3 we developed a MVP for an MDI-QKD system.
The work span-off into QBird in 2021.
I was an intern at the Quantum Technology department of the Netherlands Organisation of Applied Sciences research (TNO).
My tasks included:
- Designing and developing experiments for upcoming quantum device
- Developing calibration software for upcoming quantum device
- Software development and simulation
In the scope of my bachelors minor I was a physics teacher intern at the Christelijk Gymnasium Sorghvliet in The Hague, NL.
My tasks included:
- Designing and giving classes
- Designing and taking exams
- Hosting ‘ouderavonden’ (teacher <-> parent talks)
This internship culminated in a ‘Tweedegraads bevoegdheid’ high school teaching qualification in physics.
During both high school and university, I have tutored, been a teaching assistant and have taught a yearly retake course.
My roles included:
- Tutor of high school students while in high school, including my own classmates.
- Teaching assistant for various BSc. courses
- Teaching a yearly retake course of multiple math courses. This included lecturing, managing the course, creating handouts, supervising exams and grading.
- Designing various MOOCs on quantum computing in a team of 5 students and two professionals.
Education
1
2020 - 2025
PhD (Dr. rer. nat.)
Technische Universität Berlin, German
GPA:
"With distinction" (summa cum laude)
2
2015 - 2018
MSc. Applied Physics
Technische Universiteit Delft, The Netherlands
GPA:
8.4
Quantum Nanoscience track with electives in Quantum Information Science.
3
2012 - 2015
BSc. Technische Natuurkunde (Applied Physics)
Technische Universiteit Delft, The Netherlands
GPA:
7.5
4
High School
Stedelijk Gymnasium Haarlem, The Netherlands
GPA:
8.0
Science and engineering profile, courses in classical languages.