The War and Peace Studies track offers you a comprehensive understanding of the historical, theoretical, and practical dimensions of war and peace, while addressing the complex challenges of conflict and peacebuilding in the contemporary world.

Chemical reactions go hand-in-hand with an energy exchange with the environment in which they take place. Surfaces offer a variety of energy dissipation channels, constituted by the nuclear and electronic degrees of freedom of the atoms at the interface. Aiming at an improved future harvesting of energy,…

How did people in the latter part of the Late Bronze Age organize themselves in order to be able to erect massive structures such as tholos tombs, citadels and how did they interact with these materials and circumstances while constructing? What impact did such a changing landscape have on their day-to-day…

The curriculum in the first semester provides an overall introduction to public international law and international criminal law. The second semester is more track-specific and focused on interaction.

What did colonial officials and missionaries think they were doing?

A master's degree in Psychology at Leiden University combines theoretical knowledge with academic and professional skills, making you an attractive candidate for many employers.

Metals surfaces form a group of effective catalysts for the reaction of small molecules such as hydrogen (H2).

The HJD Article Award is a biannual award given to the published research article which best advances the theoretical and/or empirical study of diplomacy.

At the largest scales, two ingredients dictate the distribution of matter in the Universe. The first is dark matter, acting as an invisible scaffolding held together by gravitational forces.

This project aims to investigate the underlying (neurocognitive) linguistic processes of ellipsis resolution, particularly gapping.

Disciplinary History and Epistemology

Psychoeducational Assessment, Intervention and Rehabilitation (PAIR) publishes high quality articles on theoretical and empirical research regarding psychological and psychoeducational assessment, intervention, and rehabilitation in all areas related to cognitive and socio-emotional development.

In this thesis, we extend the concept of null models as canonical ensembles of multi-graphs with given constraints and present new metrics able to characterize real-world layered systems based on their correlation patterns.

The Special Issue of the European Journal of Applied Linguistics on ‘Language Ideologies: Old Questions, New Perspectives’ aims to offer diverse insights on language ideologies with a focus on methodological and theoretical questions.

This thesis explores Breaking of Ensemble Equivalence (BEE) in random graph models by examining the spectral properties of adjacency matrices. The goal is to identify spectral characteristics that differentiate random graph ensembles, enhancing the understanding of complex network structures and beh…

Promotor: J. Zaanen, Co-Promotor: V. Juricic

On 7 December 2021, Georgina Kuipers defended the thesis 'Beschadigd vertrouwen'. The doctoral research was supervised by Prof. W. den Ouden and Prof. M.A. van der Steen (EUR).

Heterogeneous catalysis is one of the fundamental processes of modern life, being common in industrial refinery and hydrogen vehicles, all the way to the living cell. The dissociation of H2 on Cu(111) is an important benchmark system for studying heterogeneous catalysis, with a large and varied amount…

Promotor: Prof.dr. C.W.J. Beenakker

Courses cover a broad range of relevant subjects and provide in-depth theoretical knowledge as well as training in practical skills and advanced research tools.

The focus of our theoretical research is understanding the behaviour of soft condensed matter, physical matter which is deformed or structurally altered by thermal fluctuations or small stresses.

The overarching goal of this thesis is to set the foundations, but also make the first essential steps towards establishing a comprehensive, mesoscopic, hydrodynamic theory of epithelial tissues. The stage is set by an exhaustive study of topological defects in passive p-atic liquid crystals, singularities…

Promotor: Prof.dr. J. Zaanen, A. Parnachev

Introduces a novel trope of photographic images dealing with states of mental disorders; focuses on photographs that visualize disturbed corporeal and mental perceptions of the world and connects medium-specific characteristics of photography to concepts from mental disorder studies.

The Philosophy of Law Department is responsible for various courses both in the Bachelors and the Masters.

Promotor: K.E. Schalm, Co-promotor: S.S. Lee

If you want to follow a full academic programme, the next step after obtaining your bachelor’s is a master’s degree (MA) at a Dutch or international university. And there may be no better place for your further master’s study than Leiden University!

Within the Linguistics specialisation, you can choose one of the suggested thematic routes. Depending on the theme of your choice, the programme prepares you for a career in various fields, such as speech technology, artificial intelligence, education, language documentation and language policy.

Do you have any questions about the master’s programme Theoretical Physics? Please contact us.

We highly value the precision and clarity brought by the use of analytic tools combined with creative and non-standard attempts to shine new light on the big questions of theoretical philosophy.

How we think about and act on the usefulness of scientific research has epistemological and political implications: what knowledge consists of, how it comes about and to what ends. In this dissertation, I situate the usefulness of scientific research in concrete places for knowledge exchange. The exchange…

Lecture, Com(parative) Syn(tax) Series

Lecture, Com(parative) Syn(tax) Series

Lecture, Com(parative) Syn(tax) Series

Caspar Reuvens, the world’s first Professor of Archaeology, was a prominent classical scholar and from his appointment in 1818 onwards Classical & Mediterranean Archaeology has been an important field of research in Leiden.

A master's degree in Psychology at Leiden University combines theoretical knowledge with academic and professional skills, making you an attractive candidate for many employers.

A master's degree in Psychology at Leiden University combines theoretical knowledge with academic and professional skills, making you an attractive candidate for many employers.

This engagingly written textbook provides a unique 'hands-on' introduction to sociolinguistics, which equips readers with the tools to start their own sociolinguistic research project.

The goal of this book is to place architectural studies, in which people’s interactions with each other and material resources are key, at the crossing of both landscape studies and material culture studies, where it belongs.

With a MSc in Chemistry you are well prepared for a wide range of career opportunities. The chemical industry is one of the largest contributors to economic prosperity worldwide.

A master's degree in Psychology at Leiden University combines theoretical knowledge with academic and professional skills, making you an attractive candidate for many employers.

Regional Federal Studies carefully reviews, selects and publishes high-quality articles dealing with various aspects of regionalism and federalism crossing substantive, thematic, geographical, theoretical, and methodological boundaries.

Natural Computing investigates algorithms and phenonema based on nature to create better and new computer science innovations.

After many years of preparations, CERN has approved a groundbreaking new experiment: the Search for Hidden Particles (SHiP). Physicist Alexey Boyarsky was involved from the start. ‘We know there is physics that’s missing and we aim to find it.’

PhD student Sung-Shik Jongmans of Leiden University and Centrum Wiskunde & Informatica investigated a new programming method to simplify this. On 3 March 2016, he graduated with the exceptional predicate 'cum laude' on his dissertation 'Automata-Theoretic Protocol Programming'. His results are interesting…

The research in the framework of the Jean Monnet Chair is focused on the following points.

The invention of neural networks marks a critical milestone in the pursuit of true artificial intelligence. Despite their impressive performance on various tasks, these networks face limitations in learning efficiently as they are often trained from scratch.

Smart digital infrastructures predicated on myriads of sensors distributed in the environment are often rendered as key to contemporary urban security governance to detect risky or suspicious entities before or during a criminal event takes place. At the same time, they often involve surveillance of…

Many important topics in computer science, such as the correctness of software, the efficiency of algorithms and the modeling of complicated systems, depend on sound theoretical underpinnings. In the Theory group, we study these fundamental building blocks and develop verification methods to prove system…