String theory has come under fire in recent years. Promises have been made that have not been lived up to. Leiden theoretical physicists have now for the first time used string theory to describe a physical phenomenon. Their discovery has been reported this week in 'Science'.

Louk Rademaker is visiting fellow at Leiden University, Lorentz Institute for Theoretical Physics. He studies theoretical quantum matter physics, connecting the material science to fundamental concepts and methods.

The Leiden Institute of Physics (LION) is the coordinating partner in the Qluster research project, which was awarded a 2,9 million euro FET Open grant by the European Union. The three-year project, which started on 1 December 2019, aims to produce many photon entanglement to aid quantum communication…

Corinne Dettmeijer-Vermeulen, the well-known legal expert and Leiden University alumna, was for many years the National Rapporteur on Trafficking in Human Beings and Sexual Violence against Children. On 26 November she will deliver the Cleveringa lecture.

On 22 June the International Centre for Migration Policy Development (ICMPD) organised a webinar on the challenges that have arisen for asylum seekers and refugees worldwide as a result of the COVID-19 crisis.

Animal species that are dear to us in the Netherlands often spend a large part or all of their lifecycle in other parts of the world. But their habitats worldwide are under increasing pressure, are often inadequately protected and much poorer than the global average. ‘If we truly care about these animals,…

In mid-March 2020, the European Commission adopted, against the background of the Corona pandemic, temporal common rules for the export into third countries of personal protective equipment, needed in the context of the Corona pandemic, out of the EU.

A research team from the Institute of Security and Global Affairs (ISGA) has received over 3 million euros in funding from the Knowledge Centre Surveillance and Protection, a partnership between the Dutch National Coordinator for Counterterrorism and Security, the Public Prosecution Office, the police,…

Many dangerous diseases such as COVID-19, Ebola and Q fever have jumped from animals to humans. But it is not only because of these diseases that we should include animals in our health policy, but also because of their right to health, writes PhD candidate Joachim Nieuwland. PhD defence on 13 May.

Jan Zaanen, Professor in Theoretical Physics of condensed material, has been awarded a Spinoza prize. His pioneering ideas about the collective behaviour of quantum particles and high temperature superconductivity have often given him the reputation of being something of a rebel.

Promotores: Prof.dr. J. Zaanen & Prof.dr. K.E. Schalm

Prof. Ton Liefaard has been appointed as member of the Council for the Administration of Criminal Justice and Protection of Juveniles.

As of 1 June, Leiden University has appointed Sense Jan van der Molen as Professor Physics of Condensed matter. He investigates the unique electronic properties that arise when atomic thin layers are stacked on top of each other into new materials.

Huub de Groot aims to understand the fundamentals of direct energy conversion by proteins, complexes, membranes and cells in natural photosynthesis for the chemical design of responsive matrices for direct energy conversion with high yield by artificial photosynthesis.

On 6 September 2019, the Governor of Murang'a County, Mwangi wa Iria, signed a declaration at Leiden University to protect the rights of children.

Patrick van der Meij (1978) is professor by special appointment of Criminal Law Practice and a partner and criminal defence lawyer at law firm Cleerdin & Hamer Advocaten in Amsterdam. He studied Dutch law from 1996 to 2001 at Leiden University specialising in criminal and criminal procedural law.

Dr Anouk Goemans has been appointed professor by special appointment of Youth Services and Child Protection from an Educational and Legal Perspective as of 1 November 2024. This chair is funded by the 'Stichting Steunfonds Pro Juventute' support fund foundation and serves as a bridge between the Department…

On 12 May, Joachim Koops, Professor of Security Studies and Scientific Director of the Institute of Security and Global Affairs (ISGA), was invited to brief the United Nations Department of Peace Operations in New York on the situation in Ukraine, options for the protection of civilians and lessons…

On 3 April 2024, the University L'Orientale in Naples will hold a full afternoon conference to discuss a book written by Dr Gianclaudio Malgieri, Associate Professor at eLaw. The title is 'Vulnerability and Data Protection Law', published with Oxford University Press in April 2023.

The SENSYN project has found a solution to few public datasets for criminological research: synthetic datasets. Marieke Liem talks about this unique innovation

A century ago, it was unclear whether the stars in the sky were clustered in groups, or widely spread in the universe.

In this thesis, we use low-frequency and high-frequency radio observations to address the following questions regarding quasars: is the radio loud/quiet quasar dichotomy real?

Koenraad Schalm studies string theory and its connections to models of particle physics and cosmology in particular.

Heritage protection is increasingly understood by nations and other actors as playing a critical intersectoral role in supporting wider development and diplomacy outcomes through soft power and cultural relations.

On this page you will find an overview of awards and prizes granted to our staff and students in 2023, as well as special appointments at Leiden University and other institutions.

Truth is stranger than fiction. In 1997 Juan Maldaceña discovered a remarkable dictionary that translates equation for equation the physics of black holes in string theory into the more conventional physics of quantum mechanics of interacting particles. The remarkable possibility exists that…

What physics controls the properties of quantum matter, such as how electrons flow inside high-temperature superconductors? This question has captivated the physics community and industry for decades, in part due to the great technological potential such materials have, but also because they have resisted…

Can we make quantum devices from quantum surprises? And can we explore and build life from the nanoscale up?

Majorana fermions in superconductors are the subgap quasiparticle excitations that are their own antiparticles.

Find out how to apply for Physics and Classical/Quantum Information at Leiden University by following our step-by-step guide.

Maria Yazdanbakhsh, Professor of Parasitology at the Leiden University Medical Centre (LUMC), has been awarded an ERC Advanced Grant of 2.5 million euros. She will investigate why people in Africa and Southeast Asia respond less to certain vaccines than Europeans. Her goal is to find a solution for…

Researchers from the Institute of Environmental Sciences (CML) identified six top priorities where environmental interventions can make the most difference. By doing so, they hope to help researchers and policymakers make the most out of the limited, available resources to protect people and the pla…

A significant percentage of children who have spent a period in youth care institutions or foster homes since 1945 received inadequate protection from physical, psychological and sexual violence. Interventions by supervisory authorities in cases involving violence were inadequate.

The Geneva Conventions and customary international humanitarian law clearly prohibit any attacks on medical units and establishments during armed conflicts. Unfortunately, despite this clear prohibition, medical personnel and medical facilities continue to be the subject of attacks. Doctors now risk…

Investigations conducted by several Dutch child protection bodies within family situations are inadequate. Due to lack of knowledge, time and money, these investigations are not carried out properly, with major consequences for the families involved.

To improve our teaching and reward excellent teaching assistants, the institute offers a Teaching Assistant Prize to the best teaching assistant of the semester.

On 6 March 2018, the Dutch Minister for Legal Protection, Mr. Dekker, responded to the Ph.D. dissertation ‘Voorlopige hechtenis in het Nederlandse jeugdstrafrecht’ (‘Pre-trial detention in the Dutch juvenile justice system’) in a Letter to Parliament.

The action plan focuses on addressing key challenges posed by technological developments and trends in biomedical practices

On 10 September the students of the European Law Master gathered in the Lorentzzaal for the festive opening of their programme.

The government is investing 646 million euros and has set aside a further 3.5 billion to drive economic growth in the Netherlands. Much of the National Growth Fund will be used for scientific innovations. Leiden University is involved in three of the projects.

Tonight 20:25, Julia Cramer, expert in quantum information and communication science, is a guest in the television science programma Atlas

The project has been done in the Quantum Matter Optics group under the supervision of Dr. Wolfgang Löffler and Prof.dr. Carlo Beenakker. The title of the presentation is:

The euro crisis of 2010 has shown that the Eurozone lacks economic cohesion and that EU fiscal integration is needed for a stable euro. But can this integration exist without clashing with the national constitutional interests of the Member States? Frederik Behre looked into this matter in his PhD-thesis…

The master's specialisation Bioinformatics at Leiden University focuses on research, development and application of computational tools and approaches for expanding the use of biological, medical, behavioral and health data.

On on 29 January 2024, it was announced that Aylin Alexa Zainea has won the Thesis Award from the Dutch Data Protection Authority. She wrote her thesis for the Advanced Master programme on Law and Digital Technologies hosted by eLaw, Center for Law and Digital Technologies. Her thesis entitled ‘Automated…

The Cyber Security Academy, therefore, proudly and enthusiastically announces that on 8 February the second cohort of Master of Science (MSc) graduates in Cyber Security in the Netherlands will graduate at the Campus of The Hague Security Delta (HSD), the national innovation centre in The Hague and…