Familiar figure new head of Niels Bohr Institute
Professor Joachim Mathiesen will take up his position as the new head of the Niels Bohr Institute from 1 December 2023. He will be responsible for leading an institute in rapid national and international development.

Joachim Mathiesen is no stranger to the head of department role. As the department's deputy head of research since 2019, he has worked closely with his predecessor, and he has furthermore been acting head of department since 1 September.
As the new head, Joachim Mathiesen will take over the management of a high-profile institution known worldwide for its research and education. The aim is to uphold this reputation, leading to a few specific focus areas.
“It is important to the Niels Bohr Institute that we continue to attract talented researchers from both Denmark and abroad. If we are to succeed, we must offer an attractive research and work environment. We need to have an open-minded approach, be inclusive and ensure diversity among our staff. At the same time, we need to do a better job of ensuring career development for our junior researchers. Not everyone will continue working with us after their PhD or postdoc positions, so we need to be good at discussing other career opportunities with them,” says Joachim Mathiesen, who also intends to focus on the study environment and the specialised master’s programmes at the Niels Bohr Institute.
“We have special degree programmes in quantum informatics, nanoscience and climate. Programmes that we collaborate on with others. We need to continue developing them for the benefit of society.”
Experience as both researcher and manager
Joachim Mathiesen, 47, holds a master’s degree and a PhD from the Niels Bohr Institute. Following his doctorate defence in 2004, he pursued a research career abroad, first in Israel at the Weizmann Institute of Science, then in Norway, where he started as a postdoc at the Norwegian University of Science and Technology, later becoming an assistant professor and eventually a professor of physics at the University of Oslo.
In 2009, he returned to the Niels Bohr Institute as an associate professor in complex systems modelling, where, among other projects, he investigates how fluid flows behave in porous structures when multiple phases are present at the same time. This involves, for example, studying how nutrients spread in the upper soil layer where both air and water are present.
Since 2019, Joachim Mathiesen has held the position of deputy head of research, and he therefore already knows the Niels Bohr Institute very well from the inside. The acting dean at Faculty of Science, Grete Bertelsen, sees this as an advantage.
“The Niels Bohr Institute has a broad spectrum of research and enjoys considerable recognition both nationally and internationally. Also, there’s a high demand from both national and international students for our physics programmes, which educate sought-after candidates for both public and private companies. So there’s plenty to get on with, and I’m convinced that Joachim’s insights will benefit both the department and the overall leadership of the faculty,” says Grete Bertelsen.
Joachim Mathiesen will take over the role of head from Jan Thomsen, who is currently a professor at the department and the COO of the department’s new quantum centre, the Novo Nordisk Foundation Quantum Computing Programme.
Contacts
Joachim MathiesenHead of DepartmentNiels Bohr Institute, University of Copenhagen
Tel:(+45) 3532 5214head_of_institute@nbi.ku.dkBirgitte LyhneHead of CommunicationsFaculty of Science, University of Copenhagen
Tel:(+45) 9356 5864Links
ABOUT THE FACULTY OF SCIENCE
The Faculty of Science at the University of Copenhagen – or SCIENCE – is Denmark's largest science research and education institution.
The Faculty's most important task is to contribute to solving the major challenges facing the rapidly changing world with increased pressure on, among other things, natural resources and significant climate change, both nationally and globally.
Subscribe to releases from Københavns Universitet
Subscribe to all the latest releases from Københavns Universitet by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Københavns Universitet
Fra Stevns til Månen: Dansk-ledet rummission skal kortlægge Månens overflade17.12.2025 06:00:00 CET | Pressemeddelelse
Københavns Universitet skal stå i spidsen for den første danske månemission. Missionen skal kortlægge Månens overflade i hidtil uset detaljegrad, som skal gøre det sikkert at lande og etablere baser på Månen i fremtiden.
Your Christmas decorations may be hiding a tiny bit of badger and toad16.12.2025 09:27:05 CET | Press release
Researchers at the University of Copenhagen have discovered that moss acts as a natural trap for environmental DNA. This discovery opens the door to using moss as a simple, gentle and inexpensive method of monitoring biodiversity – from birds and mammals to fungi, insects and microbes.
Din juledekoration gemmer måske på en lillebitte smule grævling og skrubtudse16.12.2025 09:17:58 CET | Pressemeddelelse
Forskere fra Københavns Universitet har opdaget, at mos fungerer som en DNA-fælde i naturen. Og den opdagelse åbner for mos som en enkel, billig og skånsom metode til at holde øje med biodiversiteten – fra fugle og pattedyr til svampe, insekter og mikrober.
Forskere genopliver gamle ærtesorter i enorm frøsamling: ”Et uudnyttet guldkammer til fremtiden”15.12.2025 10:29:09 CET | Pressemeddelelse
Med en ny AI-metode har forskere fra Københavns Universitet genopdaget 51 gamle ærtesorter, som ikke længere bruges i landbruget, men som kan vise sig lovende til produktion af plantebaserede fødevarer. Metoden er en genvej til at finde nye ressourcer i de grønne skatkamre, som genbankers enorme frøsamlinger udgør.
Fermentering gør havets grøntsager mere spiselige5.12.2025 06:18:59 CET | Pressemeddelelse
Tang har længe været hyldet som en bæredygtig superingrediens – men dens “fiskede” smag er en barriere for mange vestlige forbrugere. Nu viser et nyt studie fra Københavns Universitet, at fermentering med mælkesyrebakterier kan være nøglen til at få tangen til at glide ned.
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom