A secret code that we currently use to send e-mails securely is based on the maths of a century ago. The geometrical surfaces that Dino Festi studied during his PhD research will perhaps be used in future codes or new physics. PhD defence 5 July.

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In the spirit of 'unity in diversity', our objective is to promote insight into and appreciation for the wonder that the same physical laws and mathematical concepts apply to the whole of nature, from the largest to the smallest energy and length scales. We strive for the application of abstract theoretical…

Studies on representative bureaucracy have often confirmed the positive performance effects of bureaucracies mirroring the demographic characteristics of their clientele. However, little is known about the underlying individual level mechanisms leading to these outcomes.

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

Theoretical linguistics seeks to understand the underlying principles of the nature of human language.

The main goal of the THEOR CHEM group, headed by Prof. Geert-Jan Kroes, is to achieve the ability to predict the outcome of chemical reactions involving hydrogen from first principles. This goal is important in almost all fields of chemistry and in many fields of physics.

This research programme brings together LUCL researchers focusing on theoretical and experimental linguistics. By using theoretical, experimental and digital tools and methods, these researchers seek to understand the nature of language, language acquisition, language variation, and how language is…

The Leiden Centre for Theoretical Philosophy (LCTP) is a platform for analytic philosophy in a broad sense at Leiden University. Its members do research in philosophy of science, philosophy of logic and metaphysics, with a keen interest in the history of topics such as mind, knowledge, truth, and ti…

Our world is shrinking, or at least our electronic devices are. From PCs to mobile phones: everything is smaller and thinner. The smaller the chip, the better it can conduct electricity and pass on information.

The master’s specialisation Research in Theoretical Physics prepares you for a PhD position in theoretical physics. The research entails a broad range of topics including High Energy Physics and Particle Cosmology, Theoretical Physics of Life Processes and Condensed Matter Theory.

The research programme Formal Theoretical and Experimental Linguistics brings together LUCL researchers who focus mainly on formal theoretical and experimental linguistics.

Describing a new language for the first time is an exciting and challenging intellectual experience.

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The group Theoretical Physics of Life Processes, led by Helmut Schiessel, focuses on the physics of chromatin, the DNA-protein complex that fills the nuclei of eukaryotic cells.

Promotor: F. Arbab

The Math trail Leiden has been developed as part of a final project of the Master specialisation Science Communication and Society of Leiden University. During the trail you will be able to see the city Highlights while getting various challenging mathematical questions. You will find out how much math…

Wiskunde en Natuurwetenschappen, Leids Instituut voor Onderzoek in de Natuurkunde (LION)

Desertification is threatening 250 million people worldwide. Ecologists have tried to predict the spread of deserts. Help is now at hand from an unexpected source: mathematicians.

An international committee has assessed the maths research at all Dutch universities over the period from 2009 to 2014. Maths in Leiden was awarded the ‘highest’ grade ( a 1) on all criteria: quality of the research, societal relevance and sustainability.

During the prestigious International Mathematics Competition in Blagoëvgrad, Burgary, the Leiden University team won one golden and four silver medals. The team included maths students Bob Zwetsloot, Daan van Gent, Onno Berrevoets, Pim Spelier and Wessel van Woerden.

This book brings together a collection of emergent research that moves the debate on desistance beyond a general consideration of individual and social structural influences.

This summer, PhD students Marta Maggioni and Rosa Winter went to Africa. Not just to enjoy the beautiful continent, but also to stir up the enthusiasm of young students for mathematics. They volunteered at math camps in Kenya and Ghana. ‘I think it is important they experience the fun of maths.’

Sixth-grade students with lower mathematical ability perform better on complex arithmetic problems if they write down their calculations. This discovery was made by psychologist Marije Fagginger Auer, a specialist in Methodology and Statistics. Her outlook is optimistic: ‘After training, these students…

This dissertation presents new cryptographic protocols, which can be divided into two families.

More than twenty international students have received an ALGANT diploma, the master's in Algebraic Geometry and Number Theory from the Mathematical Institute, in collaboration with other European universities. Anti-bureaucratic creativity was needed to align all the rules with those Brussels.

This dissertation provides an account of polar questions in Italian dialects from a typological, theoretical and empirical perspective.

Math girls Jeanine Daems and Ionica Smeets have received the Mr. K.J. Cath prize during the opening of the academic year in Leiden.

Mathematician Francesca Arici has joined the Raising Public Awareness Committee of the European Mathematical Society. She aims to coordinate and unite the European efforts of communicating and promoting mathematics. ‘We also hope to achieve more recognition for people who do science communication.’

The Dutch Michelle Sweering became the best math girl in the world at the International Mathematical Olympiad in South Africa. She is the only girl who won a golden medal.

This thesis aims at contributing to our understanding of the semantic and prosodic properties of object foci in Greek, employing theoretical and experimental tools.

Behrouz Karoubi defended his thesis on 15 June 2016

The winner of the 'Nobel Prize for Mathematics' was there, Mayor Henri Lenferink was there, and 550 enthusiastic participants were there: Equadiff 2019 in Leiden. With plenary lectures in the beautiful Hooglandse Kerk, mini-symposia in the Kamerlingh Onnes Building and a conference dinner at Scheltema,…

This research project focuses on the extended documentation and investigation of these non-Austronesian (‘Papuan’) languages.

Mathematics students Pim Spelier and Bob Zwetsloot both won a medal at the International Mathematics Competition for University Students (IMC) 2018 in Bulgaria. Spelier talks about the competition, his preparations, and a mistake that almost costed him his good ranking.

The Dutch Research School for Theoretical Physics (DRSTP) has received excellent ratings from an independent international committee. The DRSTP is a school for PhD training which has grown out of a collaboration between the theoretical physics departments at six Dutch universities—including Leiden—and…

The Institute for Philosophy is pleased to host the OZSW Graduate Conference in Theoretical Philosophy on 9 and 10 January 2019

Professor Carlo Beenakker has been awarded a FOM Projectruimte subsidy to build a theoretical model of a majorana gun, a very promising instrument for quantum computers.

This volume offers a multidisciplinary view of cutting-edge research on bilingualism in Spanish and Portuguese-speaking regions, with the aim of building a bridge between sub-fields and approaches that often find themselves isolated from one another.

It is theoretically possible that habitable planets exist around pulsars, rotating neutron stars. Such planets must have an enormous atmosphere that convert the deadly X-rays and high energy particles of the pulsar into heat. That is stated in a scientific paper by astronomers Alessandro Patruno and…

This study investigates the syntax and distribution of the two elliptical phenomena Gapping and Fragments, as well as the movements involved in ellipsis contexts in general.

Wim van Saarloos will become vice president of the Royal Netherlands Academy of Arts and Sciences (KNAW), and return to the Leiden Institute of Physics as professor of theoretical physics. Currently, Van Saarloos is Transition Director at the Netherlands Organisation for Scientific Research (NWO).

Since February 1st, 2017 Célia Fonseca Guerra is appointed as professor at the LIC with a chair in applied theoretical chemistry. She will be a member of the Theoretical Chemistry group. Her research interests are related to bioinorganic chemistry and catalysis and her appointment at the LIC will strengthen…

The theme in the research of the Educational Sciences program group is "the learning individual in education". This theme is viewed from various angles, with particular attention to normative learning and development processes.