Our research primarily focuses on the early universe and its origins in theories that go beyond the Standard Model of particle physics.

The Rise and Decline of an Iberian Bourgeoisie is one of the first long-term studies in English of an Iberian town during the late medieval crisis. Focusing on the Catalonian city of Manresa, Jeff Fynn-Paul expertly integrates Iberian historiography with European narratives to place the city's social,…

When a star gets too close to a supermassive black hole, it is torn apart by strong tidal forces in a tidal disruption event (TDE).

This dissertation is a study of archaeological remains left behind by nomadic communities in the Black Desert, situated in the northeast of modern Jordan.

From black holes to artificial intelligence and from drug research to data science: welcome to the fascinating world of the Faculty of Science. Our researchers, students and guests regularly give public lectures about their work. You are welcome to attend.

Dr. Ahmad Al-Jallad and Prof.dr. Peter Akkermans have been awarded with the NWO Free Competition Grant for their research project 'Landscapes of Survival: Pastoralist Societies, Rock Art and Literacy in Jordan's Black Desert, c. 1000 BC to 500 AD'. Together, they study settlements, burials and inscr…

From Los Angeles to Tokyo, Urban Sociolinguistics is a sociolinguistic study of twelve urban settings around the world.

In this thesis, bioorthogonal chemistry is combined with correlative light-electron microscopy to selectively label and study pathogenic intracellular bacteria within the host immune cell.

Over the last three decades, the discovery of exoplanets has revealed the boundless variety of worlds beyond our own Solar System⁠. Majority of planetary systems contain short-period planets that are larger than Earth but smaller than Neptune⁠.

Promotor: J. Aarts

A remarkable population of short period transiting rocky exoplanets with equilibrium temperatures on the order of 2,000 K has recently been discovered.

Artificial intelligence algorithms govern in subtle, yet fundamental ways, the way we live and are transforming our societies. The promise of efficient, low‐cost or ‘neutral’ solutions harnessing the potential of big data has led public bodies to adopt algorithmic systems in the provision of public…

Everything you need to know about the minor Cultural Memory of War and Conflict.

In this book, a new generation of scholars offers fresh perspectives on the history of the Dutch slave trade. Traditionally, Dutch research has focused on business practices, often overlooking the enslaved and the complexities of illegal trade and violence.

Commonplace - Photographs from the Drummond-Fyvie Collection and the Ngilima Collection. By Tamsyn Adams and Sophie Feyder.

This thesis investigates the interplay between high-redshift quasars and the intergalactic medium (IGM) during the Epoch of Reionization (EoR). It combines new observations, systematic measurements, and forward modeling to constrain the physical state of hydrogen in the early Universe.

In this thesis, we have used numerical approaches to study the effects of translational symmetry breaking on strange metallic systems as realised by the holographic duality⁠.

PhD defence

Would you like to do something for the victims of the war in Ukraine? Several actions have been set up to help the people in Ukraine. Read below what you can do.

Immerse yourself: read books, listen to podcasts and watch films about racism, discrimination and the colonial past.

We are a dynamic research group at the Leiden Institute of Physics. Our aim is to explore and understand quantum materials, including strange metals, high-temperature superconductors, and quantum critical electron matter.

Get on your bike… or your tandem, unicycle, electric bike, tricycle, penny-farthing, rickshaw or road bike! We’re going on a bike trip!

Leiden has a strong tradition in theoretical physics, thoroughly linked with experimental disciplines.

Designing and synthesizing high-affinity ligands for a given drug target have always been among the more important challenges in the drug discovery process.

In Microbial Sciences, we perform multidisciplinary research to understand the structure and function of microbes at all levels of biological organization, from small molecules and cellular structures at atomic resolution to multicellular communities.

Pastoralist Societies, Rock Art and Literacy in Jordan’s Black Desert (200 BC to 800 AD)

Leiden scientists will be working on the development of a camera for the European Extremely Large Telescope that is currently under construction. On 28 September the Netherlands Research School for Astronomy signed an agreement with the European Southern Observatory.

Considering the ways in which the ‘global turn’ is changing the theory and practice of historical disciplines, Explorations in History and Globalization engages with the concept and methodology of globalization, challenging traditional divisions of space and time to offer a range of perspectives on…

With the rising tide of scholarly and societal interest in the history and legacy of colonialism and slavery, this collection offers a much-needed diachronic analysis of the cultural representations of the lives and afterlives of those subjected to slavery and indenture. It focuses on the history of…

In this thesis new methodologies are developed for the detection and systematic study of radio sources in the early universe. This allows us to gain a deeper understanding of the formation and evolution of galaxies, the activity of supermassive black holes, and the final phase transition of our universe:…

This book provides an overview of critical scholarly reflections on the history of Dutch slavery and colonization, as well as how this translates into critical cultural practices.

An overview of Academic E-Resources and Bibliographies

Does the δ-machine have higher accuracy than the other feature-based classifiers in some conditions?

Studies in current archaeological applications of remote sensing and non-invasive prospection methods edited by Hans Kamermans, Martin Gojda and Axel G.

The Leiden Slavery Studies Association (LSSA) is dedicated to promoting a greater understanding of slavery and post-slavery in any period and any geographical region.

This is the physics summer school of Leiden University. It is part of the Leiden Institute of Physics (LION). The summer school is intended for Bachelor (BSc) students in physics. It covers topics from quantum matter and optics, to biological & soft matter physics and cosmology and theoretical physics.…

Recent fieldwork at the vast desert region in north-eastern Jordan has revealed an immensely rich heritage of an area that is difficult to access and archaeologically less known. Professor Peter Akkermans was interviewed about his groundbreaking research in this area, known as the Black Desert.

In the article 'Dankzij Instagram hebben jonge vrouwen over de hele wereld hetzelfde gezicht' in the Dutch newspaper NRC of 4 November 2021, Cultural Anthropologist Jasmijn Rana (Assistant Professor at CADS) talks about what she considers problematic about the Instagram face. The article discusses the…

In de Mare van 30 november 2017 vindt u een artikel over Juriste Lalin Kovudhikulrungsri, die onlangs promoveerde op de rechten van mensen met lichamelijke beperkingen bij vliegreizen. ‘Een hond mag mee, maar blindegeleidenpaarden mogen worden geweigerd.’

To maximise your personal development, we ensure tutorials are small-scale and staff members extremely accessible. In year one, you’ll have an average of 12 contact hours, half of which comprise lectures (in English) and the remainder tutorials (optionally Dutch or English).

They hurtle along at over a thousand kilometres per second: the fastest stars in the Milky Way. PhD candidate Fraser Evans conducted research into these elusive hypervelocity stars and discovered that they have a lot to teach us, about black holes and supernovae, for example.

PhD defence

With the help of software that mimics a human brain, ESA’s Gaia satellite spotted six stars zipping at high speed from the centre of our Galaxy to its outskirts. This could provide key information about some of the most obscure regions of the Milky Way.

This project applies a social-historical approach to examine and contrast various groups of African-American slave refugees who sought freedom within North America between 1800 and 1860. It innovatively distinguishes between different “spaces of freedom” for runaway slaves, namely sites of formal, semi-formal,…

International organisations that represent collaborations between States are becoming increasingly more powerful, and they have an increasing impact on our daily lives. For example, the European Court of Human Rights in Strasburg established that minors have a right to legal aid immediately following…

This collection brings into conversation several kinds of scholarship on medieval authorship which have tended to remain separate over the last two to three decades, a period of steadily increasing scholarly interest in this topic.