Quantum computing is an emerging technology, which holds the potential to simulate complex quantum systems beyond the reach of classical numerical methods.Despite recent formidable advancements in quantum hardware, constructing a quantum computer capable of performing useful calculations remains challenging.In…

This thesis provides an overview of the development of the Pair Configuration to Molecular Activity Coefficient (PAC-MAC) model.

This thesis covers various applications of topology in condensed matter physics and quantum information.

Promotors: Prof.dr. J. Zaanen, Prof.dr.ir. H. Hilgenkamp

This research proposal focuses on the investigation of the poetic potentials of negativity through the exploitation of failure in sound based artistic practices - a context that has not been extensively addressed.

Since 1990 Leiden University has awarded the William of Orange medal to individuals of eminent national or international social standing.

Foute taal? Bestaat niet!

On 7 November 2024, an ESIL Joint Colloquium, organised by the European Society of International Law (ESIL) Interest Group ‘The EU as a Global Actor’ (IG EUGLOBAL), in partnership with the Interest Group on Migration and Refugee Law (IG MigRefLaw), took place on the topic ‘The EU as an (Imperfect) Global…

This dissertation examines the airs sérieux contained within the Recueils d’airs serieux et a boire de differents autheurs published by the Ballard printing house in Paris between 1695 and 1699 inclusive.

This edited volume by Jeff Fynn-Paul pushes forward the debate on the role of entrepreneurs in making war and building states in Europe and the Ottoman Empire.

Promotor: C.W.J. Beenakker, Co-Promotor: A.R. Akhmerov

This thesis is a collection of theoretical works aiming at adjusting quantum algorithms to the hardware of quantum computers.

Protein–protein complexes are formed via transient states called encounter complexes that greatly influence the formation of the stereospecific complex.

In some condensed matter systems, such as the surface of a 3D topological insulator, the electrons are effectively massless and we must necessarily use the massless Dirac equation to describe them.

Promotor: C. W. J. Beenakker, Yu. V. Nazarov, Co-promotor: J. Tworzydlo

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

Electrons in a crystal lattice have properties that may differ from those of a free electron in vacuum.

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

This project maps the policy of ‘Paz Total’ (Total Peace) and ongoing peace negotiations between non-state armed groups and the government of Colombia under the presidency of Gustavo Petro (2022-2026).

Zaanen

With the help of quantum mechanics, digital quantum hardware may be able to tackle some of the problems that are too difficult for ordinary computers. But despite these expectations and the ongoing effort of the research community, reliable quantum computers are not yet realized in a lab setting.

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

This thesis describes how to scale down concepts of macroscopic mechanical metamaterials to the thermal scale using a system of flexibly-linked colloids.

Understanding interactions in quantum many-body systems remains one of the most profound and difficult challenges in condensed matter physics.

Pre-modern long-distance trade was fraught with risks which often created conflicts of interest. The ensuing disputes and the ways the actors involved dealt with them belong to the field of conflict management.

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

À La Découverte de la Hollande dans les années 1760-1770 : Pierre Famin, Emmanuel de Croÿ-Solre, François-César Le Tellier, Jean-Marie Roland de la Platière, Gabriel-François Coyer. Textes réunis et présentés par Madeleine van Strien-Chardonneau, Paris, Société française d’étude du dix-huitième siècle,…

Promotores: Prof.dr. T.H.W. Bäck, Prof.dr. M.R.V. Chaudron, Co-Promotor: M.T.M. Emmerich

Hoe kan de City Deal Kennis Maken bijdragen aan het formuleren van maatschappelijk relevant onderzoek dat de stad in al haar diversiteit centraal stelt? In de stad Leiden zijn burgers momenteel maar in beperkte mate betrokken bij het bepalen van de agenda van de lokale City Deal Kennis Maken. Dit onderzoeksproject…

How do secondary school teachers’ professional learning preferences relate to teaching experience and the school context?

We will use Artificial Intelligence to make an intelligent, multilingual search engine for archaeological texts, which will enable new discoveries about the human past.

Promotor: Prof.dr. D. Bouwmeester, Co-Promotor: M.J.A. de Dood

The Centre for Indigenous America Studies (CIAS) at Leiden University is designed to coordinate and promote the teaching and research of Indigenous languages, literatures, cultures and cultural heritage.

If you replace the standard hydrogen atoms in ice with a heavier variant, something odd happens. The volume occupied by the molecules increases by 0.1 per cent. Leiden chemist Jörg Meyer and his colleagues have created a theoretical model that describes this behaviour. Their research appeared on the…

With 8.9 million euros from the Danish National Research Foundation, Aarhus University and Leiden Observatory will establish the Center for Interstellar Catalysis. The centre is led by Aarhus professor Liv Hornekær and aims to find out how and when the building blocks of life formed in the Universe.…

Patients on patient forums share all sorts of things about their illness: from side effects and advice to messages of support. PhD candidate Anne Dirkson uses artificial intelligence (AI) to retrieve this information. ‘Ninety per cent of the side effects weren’t officially registered.’

A signal that is present both in the centre of our Milky Way and in distant places in the universe could reveal the origin of dark matter. This is what Leiden physicist Alexey Boyarsky concludes in an article in Physical Review Letters.

The Leiden University Green Office has some great news: you can now make the most environmentally-friendly search engine - Ecosia - your default on a public LU computer!

In this dissertation (titled: Exploring the Synergies between Transfer in Reinforcement Learning and Procedural Content Generation) we explore how the two research fields named in the title, namely Transfer in Reinforcement Learning (TRL) and Procedural Content Generation (PCG) can synergize togethe…

Voor deze use case zoeken wij een gebruiker die voor onderzoeksdoeleinden interesse heeft in de auteursrechtelijk beschermde collectie van de KB en ons kan helpen met het opstellen door wensen, noden en ervaringen te delen.

The Faculty of Social and Behavioural Sciences brings together high-quality research and outstanding teaching in the disciplines of cultural anthropology, education and child studies, political science, psychology, science and technology studies, as well as in multidisciplinary approaches.

Before embarking on your studies at Leiden University, it is important to thoroughly research the financial aspects of your stay. Look into the cost of living and studying in the Netherlands, and find out about all the available sources of financial aid. There are many options available.

In the 19th century, Old English poems were claimed as cultural heritage by various non-Anglophone nations, including Scandinavians, Germans and Dutch. These competing nationalistic, cultural appropriations happened against the backdrop of a growing interest in early medieval English language and literature…

Overview of the most important papyrological websites

This thesis describes the Multi-site All-Sky CAmeRA (MASCARA), which consists of two small robotic telescope designed to detect exoplanets around the brightest stars in the sky.

How can computers help design optimal buildings? PhD student Koen van der Blom makes algorithms that take into account all kinds of different architectural requirements, in order to reach the best compromise. And that is quite difficult: 'Algorithms do not automatically understand that a building that…

The Global Abolitionisms Network, established in 2015, is an international network of scholars working on antislavery activism and abolitionism. It is affiliated to the Leiden Slavery Studies Association.