Hi, I'm

Jarn de Jong.

Researcher & Scientist

I work in quantum communication, cryptography & information science

CV (pdf)

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

Researcher (Wissenschaftliche Mitarbeiter) - TU Berlin

May 2020 - June 2025

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

Use case team member - QIA

Oct 2022 - present

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

Visiting Researcher - LIP6

May 2023

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.

Researcher - QuTech

Okt 2019 - March 2020

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.

Intern - TNO

Jul - Oct 2019

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

Teaching intern - Gymnasium Sorghvliet

Sept 2014 - Feb 2015

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.

Teaching & Tutoring - TU Delft

2011 - 2018

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.