A suitcase as a messenger of quantum science. That is the idea behind QuanTour, a project connecting researchers from 12 European universities. In December, the suitcase landed in Leiden. A month later, it is time to pass the baton to Copenhagen. But what happened to it in Leiden?

Rare-earth materials are prime candidates for storing quantum information, because the undesirable interaction with their environment is extremely weak. Consequently however, this lack of interaction implies a very small response to light, making it hard to read and write data. Leiden physicists have…

The financial system needs complexity theory to predict economic crises like the 2008 meltdown. An international team of scientists, including Leiden physicist Diego Garlaschelli, state this in a paper published in Science on February 19th.

The Italian physicist Andrea Morello is one of the pioneers of the quantum revolution. He is currently doing research at the University of New South Wales in Sydney, but cherishes his time as a PhD candidate in Leiden.

Astronomer Frans Snik searches for extraterrestrial life. He doesn’t so much look at stars as at the ‘exoplanets’ alongside them.

Cookware handles, electrical plugs, brake pads. Unlike other plastics, these ‘thermosets’ cannot simply be melted down and reshaped, making them difficult to recycle. Chemist Roxanne Kieltyka and her team are now exploring a way to make these materials recyclable, potentially transforming the way we…

Research of the Leiden Institute of Chemistry into the development of a sustainable fuel cell has accidentally resulted in an exceptionally efficient catalyst for the production of hydrogen peroxide. The catalyst, discovered by Dennis Hetterscheid and PhD candidate Michiel Langerman, may lead to a more…

An international team of astronomers from Leiden Observatory and others, has for the first time mapped a piece of the dark, cosmic web. The research strengthens the hypothesis that the young universe consisted of huge numbers of small groups of newly formed stars. The astronomers publish their findings…

Professor Mirjam de Bruijn will research digital warfare in the North African Sahel with an NWO Open Competition grant. The focus of the research will be on Fulani social networks in war and cultural violence.

We are pleased to welcome three new colleagues at the Institute of Security and Global Affairs this month: Andrea Bartolucci, Joana Cook and Silvia D'Amato.

The state should prepare 'lifers' better for returning to society, for example by giving them some control over their own lives. This is the finding of Marieke Liem in her book 'After Life Imprisonment', published on 19 August.

The new programme Synoptic Optics, funded by the NWO Domain Applied and Engineering Sciences, will develop new optical techniques. Researcher Frans Snik and Professor of Experimental Astrophysics Christoph Keller from Leiden Observatory will test novel approaches to monitor air pollution and discover…

Astronomy departments at Dutch universities is among the top of the world rankings for astronomical institutions. This is the conclusion drawn from a recent evaluation of the Netherlands Research School for Astronomy (NOVA) and the astronomy institutions of the University of Amsterdam, the University…

The human trafficking of Eritrean refugees is a booming business, where money is made with smuggling people, but also using violence, hostage situations and even torture. Modern communication methods like money transfer via mobile phones play a vital role in this, conclude professor Mirjam van Reisen…

The city of Leiden is enriched by a dense infrastructure of knowledge institutes, with a uniquely strong focus on health and well-being. This gives Leiden

The European Football Championship for Women, in the Netherlands this summer, is the background for a large and innovative data research project. The Dutch football union is working together with Leiden University and Sportinnovator. The research is expected to uncover links that have thus far remained…

Leiden physicists and chemists have managed to bring two graphene layers so close together that an electric current spontaneously jumps across. In the future this could enable scientists to study the edges of graphene and use them for sequencing DNA with a precision beyond existing technologies. Publication…

Two black holes, in close orbit around each other. Have they slowly drifted together, or did they emerge from two orbiting stars? Together with to colleagues form Amsterdam, Leiden astronomer Simon Portegies Zwart calculated that the second scenario is rather likely.

To date it has proved very difficult to convert the promises of the miracle material graphene into practical applications. Amedeo Bellunato, PhD candidate at the Leiden Institute of Chemistry, has developed a method of cutting graphene into smaller fragments using a diamond knife. He can then construct…

Brazil is one of the world's largest emerging economies, but more is needed if it is to use this economic power for all parts of Brazilian society. This will be the subject of Professor of Brazilian Studies Edmund Amann's inaugural lecture on 20 November.

If Europeans eat less meat and dairy, this will have major consequences for farmers. New research shows that many barns and machines could lose their value. With the right policies, these losses can be limited. This is shown by research from Leiden, Oxford and Vienna.

The team of WIIS-Netherlands exists out of the board members and the advisory council.

Esteban Szmulewicz, a PhD candidate at the Department of Constitutional and Administrative Law, spoke at the annual Salzburg Global Weekend, organised by the Salzburg Global Seminar with the theme 'Democracy on the Front Lines'. Key speakers included Nobel Peace Laureate the Ukrainian Civil Rights defender…

Eurostat, the European statistical office, reports that inflation in the Eurozone has increased to 4.1 per cent. What are the implications for your wallet and your savings? And how can consumers respond?

Ralph Keuning, the former director of Museum de Fundatie, a museum for the visual arts in Zwolle, stepped down in 2022 following complaints about authoritarian leadership. On top of that, an independent investigation has shown that he received almost €200,000 from the struggling museum after his departure.…

Capture the emissions of ships and use it to cultivate algae, which you can then use to make biofuels. This was the idea that won the team from Leiden, led by Public Administration student Hein Laterveer, the Rotterdam100 competition.

Extreme Scoring, the research project by ACPA PhD Michael Drapkin, calls for increased emphasis on chamber orchestras as a way of preserving the symphonic works of the classical music canon and expanding them to new audiences.

Zuzana Vikarská joined the Europa Institute in January 2021 as a visiting researcher within the re:constitution fellowship - a new programme funded by Stiftung Mercator comprising 20 fellows who have their own project. The fellows meet regularly to discuss work in progress and engage in academic mobility…

On 18 July 2018 former President of South Africa Nelson Mandela would have been 100 years old. In 1999 the anti-apartheid activist received an honorary doctorate from Leiden University. His response was modest: 'This is not a personal achievement. It is a tribute to all those who were involved in the…

'A great result for the effect of Pokémon Go on children with autism', says Carolien Rieffe in the Dutch newspaper De Volkskrant. 'Although we do not know whether the game will lead to friendships in the long term.'

Dr. Sarah Cramsey, University Lecturer Judaism & Diaspora Studies, has been awarded an Early Career Partnership by the KNAW.

Between the 29th of April and the 2nd of May 2016 the Botany Club went on its annual excursion. This time, the theme was alpine and arctic plants and their ecology, and (peri-) glacial processes and features. Where better to search for arctic/alpine plants and experience glacial geomorphology than…

The District Court of The Hague announced its judgment on 5 February in the case of SyRI (Systeem Risico Indicatie). Two writers, Privacy rights groups, civil rights lawyers and the largest national labour union had rallied to fight this controversial surveillance system, created and used by the Dutch…

Het demissionair kabinet zet een koerswijziging in ten opzichte van eerdere ‘stille diplomatie’ strategie. Deze koers bevat o.a. een inreisverbod voor twee extremistische ministers Smotrich en Ben-Guyir. Wim Voermans, hoogleraar Staatsrecht, zegt in de Volkskrant’ dat het kabinet hiermee een belangrijk…

Eight students who enrolled in the LUC Multimedia Journalism course worked an entire block on their online productions, which had to include at least three of five possible media forms: text, audio, video, photo and infographics.

On 8 March 2023 Helen Duffy, Professor of International Human Rights and Humanitarian Law in Leiden, published a monograph on Global Trends in Counter-terrorism and the Implications for Human Rights in Africa.

Misleading social media posts are falsely claiming that the Dutch supermarket chain Jumbo uses facial recognition at self-service checkouts. Jumbo denies this, although it has launched trials with AI cameras to combat shoplifting without using facial recognition.

They are among the rarest and most extremely luminous stars in our universe: yellow hypergiants. Their spectacular eruptions have intrigued astronomers for decades, and now an international team led by Leiden’s emeritus professor Arnout van Genderen has gained new insights into the mechanisms behind…

Just behind the entry gate of Angkor Wat, known as Gopura 4 West, through which every year millions of tourists enter the most iconic temple of the UNESCO World Heritage Site, ground-penetrating radar surveys revealed a set of masonry structures: six ‘tower’ bases in geometrical alignment, possibly…

The article of The Economist discusses the problems of Great Britain “exporting” extremists to foreign countries and the serious worries about British extremist who hold a foreign origin. In particularly, citizens whose roots lie in Bangladesh. Last February, Shamima Begum was stripped of her Britain…

The International Astronautical Congress (IAC) that took place last week in Paris was extremely successful for IIASL.

Classics alumnus Ilja Leonard Pfeijffer has won the Libris Literature Prize this year with his book La Superba. The Libris Literature Prize is one of the most prestigious awards in Dutch literature.

In a new Social Europe article, Salvador Santino Regilme, Associate Professor of International Relations at Leiden University, warns that the EU must radically rethink how it funds its security—before it is too late.

Leiden physicist Carlo Beenakker has received an honorary doctorate from the Bogoliubov Institute for theoretical physics in Kiev.

Researchers from more than 30 countries have been discussing the changes in reading through digitization in the European research network E-READ. Adriaan van der Weel, Senior University Lecturer, spoke about the network’s achievements in the German newspaper Frankfurter Allgemeine Zeitung.

On 1 January 2019, Gijsbert Rutten became LUCL’s new Director of Education. We asked him about his plans.

The KNMI issues weather warnings in various codes depending on the weather's risk to people's safety. Below, you can read what the university and faculty follow for these codes.

Materials like concrete, steel, plastic and fertiliser shape the world around us, but they’re also extremely polluting. If we want to build a more sustainable society, we can learn a lot from archeologists. How do we relate to these materials? And are there alternatives? Maikel Kuijpers is writing a…

The aviation sector is now fully aware of the major impact of the corona crisis. Airline companies are appealing to governments for help.

Archaeologist Roos van Oosten is studying Leiden's medieval cesspits. And on the basis of her work she reaches a surprising conclusion: the Middle Ages were no means as filthy as you might think.