Physicists understand little about quantum matter, which is a building block of future quantum computers. Theorists have now discovered that black holes with ‘dreadlocks’ harbor a similarly exotic order pattern, which makes calculations on quantum matter easier. Publication in Physical Review Letter…

Terrorism, crisis, violence, intelligence, diplomacy, war and peace are topics that are broadly covered in ISGA's research activities. Regularly, ISGA researchers appear in international media to discuss their research expertise. This item offers an overview of non-Dutch and non-English articles and…

To celebrate the formal launch of the Leiden Chinese Queer Collection (LCQC, 莱顿华语酷儿文献收藏), promote Chinese queer studies scholarship, and raise the visibility of Chinese queer history and culture, the LCQC steering committee will hold a workshop on 24-25 July 2025, under the aegis of the Leiden University…

On the occasion of the 60th anniversary of the foundation of the Common Market Law Review, the Editors of the Review hosted a one-day conference on 'Membership of the European Union: Implication, Challenges, Boundaries' on Friday, 9 June 2023. EU law scholars from different countries all over Europe…

LUCIS affiliated members are researchers outside Leiden University who are actively involved in the study of Islam and/or Muslim societies and who regularly participate in LUCIS activities. LUCIS affiliate membership offers possibilities to cooperate with LUCIS as well as network opportunities. Contact…

Which law governs the Strait of Hormuz? Under international law, both Iran and the US are expected to comply with the ‘Constitution for the Oceans’. In practice, the situation is more complicated, explains maritime law expert Hilde Woker.

Jan Erk, political scientist at Leiden University, has been selected as the 2016-2017 Smuts Memorial Fellow at the University of Cambridge. During his residency at the renowned British academy, he will work on his research project ‘The Enduring Impact of Africa’s extinct kingdoms and invisible chief…

The logo of Leiden University, with letters as small as a bacterium. Researchers from LUMC and the Institute of Biology have created the smallest logo of our university ever produced. It is a piece of fun with a serious real-world application: the new microscope with which the logo was made allows scientists…

Many members of Chicago's P'urhepecha community did not even know they lived a stone’s throw from some of their own historical heritage. Researcher Kate Bellamy organised a meeting to introduce them to books hundreds of years old.

The lecture series “Humanity in the Automated State” held its second session on January 12, 2026, at Leiden Law School. Dr. Aya Rizk from Linköping University brought her expertise on Information Systems whit a focus on how digital technologies and data drive organizational change, particularly in decision-making…

The lecture series “Humanity in the Automated State” continued on 19 March 2026 at Leiden Law School with Dr. Mengchen Dong from the Center for Humans and Machines at the Max Planck Institute for Human Development.

The lecture series “Humanity in the Automated State” continued on February 12, 2026, at Leiden Law School with Professor Madalina Busuioc of VU Amsterdam, a public governance scholar, AI-DG Lab co-director, MSc programme founder, and recipient of a European Research Council grant.

European product safety law is one of the focal points of internal market legislation.

Those who apply for asylum at the Immigration and Naturalisation Service (IND) are often asked about their main reason for migration. This process puts asylum seekers in a specific category, while their experiences are often much more complex and multifaceted. With his research on queer migration, PhD…

It was long thought that the early development of Japanese children's books served mainly as a propaganda tool of the state: the literature was supposed to have been written to shape children into perfect citizens. PhD student Aafke van Ewijk nuances this image. Children's book writers wanted to have…

On Wednesday 26 October the kick-off event of the research profile area ‘Interaction between Legal Systems 2.0’ (ILS) took place. Speakers explained their understanding of the concept of ILS and the activities and opportunities of ILS 2.0 for the faculty were set out

From 13 to 16 July, Leiden will host the EuroScience Open Forum (ESOF), the largest multidisciplinary scientific conference in Europe. Lars van Doorn from Leiden Law School will give a presentation.

Anti-immigration protests over asylum seekers receive extensive attention, but PhD candidate Clare Fenwick says it’s a vocal minority taking to the streets. 'The silent majority might also have migration concerns, like job losses due to labour migration, but these views seem to remain outside public…

The Department of Economics at Leiden Law School teaches courses in both Leiden and The Hague to more than 1700 students.

Karen Smith is a university lecturer in International Relations at the Institute for History and she occupies a unique position: she has one foot in the academic world and the other in the world of the United Nations. As a Special Adviser, she helps the UN Secretary-General Antonio Guterres to remind…

Een internationaal consortium onder leiding van Olaf van Vliet heeft een Horizon Europe subsidie van 3,4 miljoen euro gewonnen. In het onderzoek staat centraal hoe wereldwijde sociale veranderingen zoals migratie, digitalisering en de klimaattransitie de arbeidsmarkt beïnvloeden en wat daar de gevolgen…

Hugo de Jonge, currently Minister of Housing, has chosen to appear before the Dutch House of Representatives to talk about his time as ‘Covid Minister’. This sets a dangerous precedent according to Wim Voermans, Professor of Constitutional Law at Leiden University. However, under Dutch constitutional…

Moritz Jesse, Associate Professor of EU Law at the Europa Institute, has published his book, “The Civic Citizens of Europe: The Legal Potential for Immigrant Integration in the EU, Belgium, Germany, and the United Kingdom”.

Er dreigen onmenselijke toestanden als gedetineerden niet twee weken eerder vrijgelaten mogen worden, stelt Miranda Boone, hoogleraar criminologie en vergelijkende penologie, in een opiniestuk in Trouw. ‘Waar de grens naar overbevolkte gevangenissen wordt overschreden, is er geen weg terug.’

The American security services brought down American President Nixon, not the media as people generally believe. Andrew Gawthorpe, researcher on diplomacy and American foreign policy, hopes that the security services under Trump also make the right decision.

The Hague City Council is discussing the implications for local politics of the verdict acquitting former councillors De Mos and Guernaoui of corruption. The court ruled that from a criminal law perspective there was no official bribery. The debate will mainly focus on whether De Mos' party ‘Hart voor…

On Thursday 7 May, Jolanda van der Vliet obtained her PhD based on her dissertation 'The International Protection of Environmental Refugees. A human rights-based, security and State responsibility approach.' The defence was held online. Jolanda worked on her dissertation under the supervision of the…

Maartje van der Woude, together with Dr Irene Vega, has won the 2024 Theoretical Criminology Best Article Prize for the article ‘Colourblindness across borders: The de-racialised logics of Dutch and American border agents’ in the journal Theoretical Criminology.

On Friday, April 5, the Ecuadorian police stormed the Mexican Embassy in Quito to arrest former Ecuadorian vice president Jorge Glas Espinel.

Astronomers led by Pieter van Dokkum have discovered a galaxy that barely contains any dark matter, which actually proves that dark matter does indeed exist. The research results will be published this week in Nature.

Grabovski spoke in various media on the occasion of Holocaust Remembrance Day on 27 January 2022.

Lecture, Lunch Talk

Lecture

Stefano Pollas master thesis 'Quantum Digital Cooling' has been awarded the Lorentz Master thesis award. The award, 3000 euros and a certificate, has been awarded on 25 November at the Koninklijke Hollandse Maatschappij van Wetenschappen (KHMW) society in Haarlem.

The ongoing coronavirus crisis means that Leiden Law Exchange (LLX) events have now also moved online. On 26 January 2021 policy workers, academics and professionals met in an informal setting under the Chatham House Rule to discuss the recent accusations aimed at the European Border and Coast Guard…

On January 12 the Steering Committee Science4Arts awarded the application of Prof.dr. Maarten Jansen entitled:

Understanding the behaviour of tiny droplets in our cells could aid the search for new treatments. A team of Leiden researchers has developed a groundbreaking method to study how these droplets transition from liquid to solid. This change plays a role in various diseases, including neurodegenerative…

On 23 June 2022, Kristof Gombeer succesfully defended his dissertation entitled ‘Relations of Duty in an Age of Rights: A study of the supply side of human rights in the context of maritime migration’.

Lecture

Christa Tobler writes an extensive article on voting rights for different groups for the annual congress of the

On October 21st, 2019, the President of Mexico, Andrés Manuel López Obrador, handed out the National Prize for the Youth in the academic achievement category to our PhD candidate Omar Aguilar Sánchez. He received this honour for his work on Mixtec pictorial manuscripts.

The amici curiae brief was filed with the United States District Court for the Central District of California, on 28 January 2020.

Daniela Kraft's group has succeeded in creating a network of microparticles that is both strong and completely flexible. This may sound simple, yet they are the first in the world to succeed in doing so. A real breakthrough in soft matter physics.

This book underscores the interplay between religion and politics (local and global) in the production, escalation, management, mitigation, and resolution of conflict.

Gisela Hirschmann, lecturer and researcher at Leiden University’s Institute of Political Science, has been awarded a 2-year grant of € 170.000 by the German Fritz Thyssen Foundation to study how international organisations react to budget cuts, membership withdrawals and systematic non-compliance by…

Every Political Science master’s student at Leiden University completes their degree with thesis. The thesis provides students with the opportunity to pursue a topic of their choosing in depth and conduct independent research. It is a demanding task that requires dedication, attention to detail, and…