Lecture, Histories Connected: Work-in-Progress

Can you prove whether a large quantum system truly behaves according to the weird and wonderful rules of quantum mechanics — or if it just looks like it does? In a groundbreaking study, physicists from Leiden, Beijing en Hangzhou found the answer to this question.

For thousands of years, the prehistoric communities of the Low Countries followed their own path, compared with the rest of Europe. An international research team has now published these findings in Nature.

When Petra Sijpesteijn became a member of the Académie des Inscriptions et Belles-Lettres, she was the only Dutch member with an appointment at a Dutch university. Two years later, she is also the only Dutch member of the Austrian Academy and officially joined the British Academy on 7 October.

Education, Organisation

Education, Organisation

The night side of exoplanet WASP-43b, to the surprise of astronomers, does not appear to contain methane. It is likely that extreme winds do not allow enough time for methane to form in detectable amounts. This is the conclusion of an international team of scientists, with Leiden and Amsterdam contributions,…

Leiden ecotoxicologist Martina Vijver helped shake a European policy proposal in a single weekend. Not with a new experiment, but with years of research on pesticides – and an urgent letter that reached Brussels.

Student dean Romke Biagioni is committed to help students have an easygoing and pleasant time during their studies. She assists students with disabilities, looks for solutions to problems such as housing issues and counsels students with social or financial problems. For MSc student Computer Science…

This Thursday, January 18th 2024, our esteemed colleague Jan Zaanen passed away. Jan was one of our star scientists, larger than life, with an unabashed, boisterous drive for the best of physics at the Institute Lorentz, at the Leiden Institute of Physics and in the full international scientific community.…

A big performance by André Rieu, food trucks in The Hague and more contact with the Royal Family: grand plans were announced in April to make the State Opening of Parliament (Prinsjesdag) a real ‘crowd puller’. For this year, however, we will just have to make do with slight differences in emphasis.…

Our constitutional democracy is under pressure. Politicians are increasingly bending rules and institutions to their will, often in small steps. PhD candidate Jorieke Manenschijn warns that through a combination of subtle changes we can cross a line without realising it.

If you want easy answers to governance questions, you might as well abolish democracy, says Dr. Carola Schoor. A democracy should challenge and raise questions. For a balanced and just rule of law, a 'rule of law compass' is needed.

Given the teacher shortage, secondary schools could use an extra pair of hands. Alfrink College in Zoetermeer is glad to have students from the university helping out in class. ‘We hope students will see how great it is to work in teaching.’

It often takes longer for women with heart problems to get the right diagnosis. In her Annie Romein-Verschoor Lecture, Professor Hester den Ruijter will talk about how hormones influence the heart and the importance of medical research that focuses specifically on women.

Exploring the minds of our primate cousins in the wild, using under-exploited observations of their travel paths. A large set of observations of the travel paths of wild primates provides new opportunities for in-depth insights in the evolution of the mental abilities that primates, including ourselves,…

Always taking the same route to work, going for that one dish in restaurants and going on the same holiday each summer: this may ring a bell for those who don’t like uncertainty. Researchers are now discovering that this aversion affects how we understand the world.

PhD candidate Layla van Wieringen examined how extremist beliefs are passed on within households. In her dissertation ‘Rotten Trees, Bad Apples? Understanding the Intergenerational Transmission of Extremism’, she reveals a reality that media and politics rarely address.

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

Lecture, Workshop

Lecture, Tuesday Talks: Science Insights

Elise Dusseldorp has been appointed Professor in the Methodology and Statistics of Psychological Research. In the same way that she spends her spare time rambling through the forest, as a professor she sifts through colleagues’ research data. ‘I often come across information that doesn’t appear in the…

Political scientists study topics that affect society, but their work often remains out of the spotlight. Not always: the research of Leiden political scientist Simon Otjes does have a visible impact.

No procession of professors, just a handful of people in the church and snowdrifts outside Leiden’s Pieterskerk: 8 February 2021 was no ordinary Dies Natalis. Carel Stolker transferred the rectorate to Hester Bijl, and Annetje Ottow became the new President of the Executive Board. With an honorary doctorate…

Lecture, Peace Histories Seminar Series