Research groups in the Quantum Matter & Optics programme investigate electronic properties of matter and light-matter interactions with emphasis on quantum information.

In this second book of the series

What are ‘missing links’ in research on teacher professional development trajectories? We focus on the role and development of teacher facilitators in designing and implementing (collaborative) professional development trajectories.

On this page, you will find the recordings of the Tuesday Talks since April 2025. Recordings of the precursor to the Tuesday Talks, This Week’s Discoveries, are also available here.

FluidKnowledge will investigate the past, present and future of evaluating ocean science. Regarding the past, it will ask how research priorities in ocean science evolved until now. Which lines of inquiry became hot topics, and which died out? Who became global players, who ended up in the periphery?…

When does radicalization not lead to terrorist attacks?

Comparative and Dutch Politics is one of the three organisational clusters of the Institute of Political Science.

Across Leiden University and LUMC, people are taking steps to put academia into motion. Learn what they are doing, why it matters and their tips for colleagues.

Children who lost their fathers in early modern England ran the risk of being sold to the highest bidder. Although Shakespeare wrote about it in his plays, the practice disappeared from collective memory for a long time. University lecturer Lotte Fikkers is bringing it back to light in a new Vidi research…

On 9 February 2026, Bastiaan Rijpkema, Professor of Jurisprudence, was elected as a member of the Royal Holland Society of Sciences and Humanities (KHMW).

On 9 February 2026, Bastiaan Rijpkema, Professor of Jurisprudence, was appointed as a member of the Royal Holland Society of Sciences and Humanities (KHMW).

In this paper, Sarah Giest and Bram Klievink highlight the effects of AI implementation on public sector innovation. This is explored by asking how AI-driven technologies in public decision-making in different organizational contexts impacts innovation in the role definition of bureaucrats.

The use of increasingly large and diverse datasets to guide urban climate action has implications for how, and by whom, local governments are held accountable.

The Public Policy and Innovation department of the Institute of Public Administration focuses on shaping, implementing, and evaluating policy through innovative approaches. Our goal is to tackle complex societal challenges by exploring technological advancements and creative policy tools.

The authors examine the efforts towards implementing minimum labor standards in global supply chains through the lens of corporate social responsibility

Governments are increasingly facilitating the roll-out of so-called “smart meters”, a technology for measuring energy consumption that are able to transmit and receive data using a form of electronic communication. However, implementation has been slow or even stalled.

The secretary of the Institute of Cultural Anthropology and Development Sociology is located in room 3.A63.

The Labour Law and Social Security department provides both bachelor’s level and master’s level teaching.

Many people across Leiden University are connected with Academia in Motion.

Sarah Giest, Assistant Professor at Leiden University, and Ishani Mukherjee researched the topic of 'Behavioural Insights Teams (BITs) and Policy Change: An Exploration of Impact, Location, and Temporality of Policy Advice'.

The project “Optimizing the responsible researcher” (see below) has enriched the knowledge base about the shared values of responsible biomedical research and the various ways in which these ideals are (or are not) put into practice.

The Laboratory for Archaeological Chemistry focuses on the preparation and processing of bioarchaeological remains for various biomolecular methods including especially isotopic, hormonal, and microscopic analyses.

This research evaluates the Youth Act. It will provide an overview of how the transition takes place, whether the transformation process develops in the right direction and whether the legal safeguards are functioning properly.

In this project we think about the relationship between territory and contagion. Tracing the historical, political, and conceptual linkages between territorial bordering and migration on the one hand and disease related phenomena like contagion, immunity, and inoculation on the other, we ask how the…

Europe is of great importance for Leiden University: as an academic discipline, as a funder for research and education activities, and as a legislator, the EU offers us many opportunities.

Leiden University’s new ‘Europe Hub’ is an interdisciplinary platform that showcases the university’s research and teaching expertise and capacities on Europe’s societal and governance challenges.

The scientists at Babylab Leiden ensure that important knowledge is gathered about how babies learn to understand the world around them. Meet our Babylab Team and get to know our researchers!

Book presentation

How do people develop and how do they learn? How does their environment affect them? How do we ensure that they develop in optimal fashion? And what can we do if problems occur? These are questions that the researchers at the Institute of Education and Child Studies try to answer.

Health workers have always sought ways to fight disease in vulnerable groups in the population. It is now clear that such research also benefits more prosperous countries. African worm infections and innovative thermometers have shown Leiden researchers how to fight diseases of affluence and keep health…

A continuous learning pathway in suicide prevention equips psychology students with essential knowledge and skills to recognise suicidality effectively and to initiate the conversation about it.

Over the recent period there have been a number of protests and demonstrations at universities by people who oppose the universities’ collaboration with the fossil fuel industry. Students and staff in Leiden are also expressing their concerns about this issue. We are now publishing a list giving an…

The researchers at the Institute of Education and Child Studies focus on child rearing and the development of children and adolescents with and without developmental and other problems, in biological and non-biological families, childcare, education and care institutions.

The knowledge and skills you will acquire will qualify you for many different jobs. Possible careers include: researcher of learning, behavioural and emotional problems in children, or designer of prevention and intervention programmes.

The Keuzegids is an independent consumer guide that compares all (master’s) programmes in the Netherlands. Students evaluate the programmes based on content, atmosphere, lecturers, assessment, and career preparation.

To understand how the brain works, it is essential to map it out in detail. This appears to be possible with a microscopy technique in which Leiden physicists excel. This breakthrough could significantly advance the human quest to understand brain functions.

Leiden is part of the worldwide network of research centres dedicated to the research of Austrian Studies.

Sarah Giest, Assistant Professor at Leiden Univeristy, researched the topic of regulatory and market structures that affect nudge implementation by private actors, captured by the ‘budge’ idea.

The mission of Printeger is to enhance research integrity by promoting a research culture in which integrity is part and parcel of what it means to do excellent research, and not just an external and restrictive control system.

Researchers are pulled in various, sometimes contradictory directions by the multiplication of performance metrics and new incentives to align with societal needs. Management structures, funding systems, and publication practices are increasingly influenced by pressures to promote only the highest quality…

This paper contributes on an increasing body of work on radicalisation. It specifically focuses on what distinguishes individuals whose behavioural radicalisation includes involvement in terrorist violence from those whose behavioural radicalisation does not.

This book expands on the existing literature on the international dimension of democratization by introducing the concept of democracy projection. Democracy projection is defined as the projection of (democratic) norms through the every-day practice of interactions-beyond any donor-recipient relationship-between…

This study presents the findings of a laboratory-based experiment testing hypothesised processes implicated in the prevention of violent radicalisation through counter-narratives. The central aims of the study were to contribute to counter-narrative theory, whilst highlighting the value of experimental…