We study the structure, dynamics and physics of complex networks emerging from the intricate interconnectedness of the constituents of large systems.

To be eligible for Astronomy at Leiden University, you must meet the following admission requirements.

To be eligible for Astronomy and Education at Leiden University, you must meet the following admission requirements.

The fastest chemical reaction in the universe takes place inside our eyes.

In Leiden, light particles march into Wolfgang Löffler’s experiments one by one. His research focuses on acquiring the fundamental knowledge needed to develop quantum computers and networks.

Physicist Remko Fermin from Leiden University was awarded a Rubicon grant from NWO. He will use it to study superconducting diodes that could contribute to reducing the CO2 emission of data centres.

In this research group, headed by Bob Van de Water, cell signaling programs that underlie adverse drug reactions as well as cancer development and progression are unraveled. Adverse drug reactions involve cell injury in critical target organ cells which leads to the activation of cellular stress response…

Research on this theme concerns Europe’s position in global markets, its response to the emergence of new international trade and financial actors that challenge institutions where Europe has long had considerable influence.

Through metabolism, biochemical processes give rise to the complexity of life. Acquired and inborn errors in metabolism underlie many diseases occurring in man. The challenge for present day medical biochemistry is to find, and integrate, pieces of information at molecular, cell and organismal level…

This study aims to answer two main research questions: (1) What are the main predictors of work ability in employees with migraine? (2) Can we optimise work ability in employees with migraine using a web-based intervention focused on these relevant predictors?

For the first time, physicists have visualized the ‘melting’ of electrons inside a special class of insulators. It allows electrons to move freely and turns the insulator into a metal and possibly later into a superconductor. Publication in Nature Physics.

Majorana particles have been getting bad publicity: a claimed discovery in ultracold nanowires had to be retracted. Now Leiden physicists open up a new door to detecting Majoranas in a different experimental system, the Fu-Kane heterostructure, they announce in Physical Review Letters.

Aquí pueden encontrar el programa del congreso.

Numismatic research of Roman coin hoards in the Netherlands. The use of numismatic sources is incorporated in Claes’s research project “Dialogues of Power”. This project aims to analyse the legitimising dialogue between Roman emperors and their Germanic legions during the so-called “crisis of the third…

There are many complex links in the chain that provides patients with new drugs: from fundamental science, to clinical tests, to production. The entire chain can be found in Leiden. Leiden University, the Leiden University Medical Center (LUMC) and the businesses at the Leiden Bio Science Park (LBSP)…

The Humanities Campus will take further shape in 2024, with the completion of the South Cluster in February and a whole series of moves that will then take place in the spring and summer. A few highlights of the upcoming moves are described below.

Wetlands provide many ecosystem goods and services which include fish production. The sustainability of small-scale fisheries (SSF) has received considerable attention in recent years because fish is one of the major sources of animal protein to a considerable fraction of the global population which…

CADS researchers give methodology their own unique signature through two parallel engagements: (a) teaching and researching the full range of social science methods, from audio-visual engagements, through global ethnography, to statistical analysis; and (b) interrogating these multiple modalities employing…

Maritime conflict management is the regulation of conflict in relation to the sea. It comprises conflict enforcement, conflict resolution and conflict avoidance. How did victims of maritime conflicts claim and obtain damages or demand compensation or reparation?

Hieratic Papyrology

Lecture

Twenty years from now, the world population is estimated to be around 9 billion people (now 8 billion). In combination with the improvements in living standards and the corresponding growth in consumption, this population will result in an enormous increase in the demand for food, consumables, water…

The long term goal of the Biophysical Organic Chemistry/SSNMR group, headed by Prof. Huub de Groot, is to reach an understanding of structure, dynamics and functional mechanisms of membrane proteins and self-organized biological assemblies and to translate this knowledge into new concepts for nano-devices,…

Leiden physicists have developed a way to address how accurately a superconducting single photon detector (SSPD) can be characterized by detector tomography. SSPDs are not fully understood, and tomography is a key element to determine how these devices detect light. A better understanding of these detectors…

An overview of awards and prizes granted to our staff and students in 2019, as well as special appointments and royal distinctions.

Experimental physicist Jan Aarts has received a FOM Projectruimte grant of 545,000 euro. He will use the budget to study the interaction between superconducting currents and ferromagnetism. In the future, this might lead to computer memory with negligible energy consumption.

The project has been done in the Quantum Matter Optics group under the supervision of Prof. dr. Tjerk Oosterkamp and Dr. L. Bossoni. The title of the presentation is:

The project has been done in the Quantum Optics group under the supervision of Dr. Jan Willem Dalhuisen. The title of the presentation is: ''Hopfions in curved spacetime.

Because the last Elfstedentocht celebrates its twentieth anniversary, New Scientist spoke with physics professor Tjerk Oosterkamp about his research on the slipperiness of ice and his passion for skating on natural ice.

Promotor: H.J.M. de Groot

Leiden physicists have been awarded 1.5 million euros for developing a hybrid microscope that provided nanometer-resolution. 'The idea is to combine the resolution of electron microscopy with the pros of optical microscopes.'

This header image was once elected Image of the Week by De Volkskrant and won second place in the LION Image Award. The research behind it is no less successful if we’re counting prizes. Last August, group leader Tjerk Oosterkamp was awarded an NWO Projectruimte grant, and now NWO-TTW grants him an…

CERQ is a questionnaire measuring cognitive coping strategies developed by Dr. Nadia Garnefski and Dr. Vivian Kraaij.

From July 22nd to August 1st, the Leiden Institute of Physics organizes its annual summer school, titled ‘Modern Physics at all Scales’.

From 16 to 26 July, the Leiden Institute of Physics organizes its annual summer school, titled ‘Modern Physics at all Scales’.

How is law shaped by and shaping social, political and economic change in Indonesia?

The Cleveringa chair was installed by Leiden University in memory of Professor Rudolph Pabus Cleveringa and the courage he demonstrated in November 1940 during the German occupation . It also commemorates the liberation of the Netherlands in 1945.

The foundation of the ‘Leids Papyrologisch Instituut’ took place on 19 January 1935. Prior to then, the founders – J.C. van Oven (1881-1963, Roman Law), B.A. van Groningen (1894-1987, Greek) and M. David (1898-1986, Legal History) – had already been teaching Greek papyrology at Leiden University.

Governance is a complex puzzle of organisations, people and divergent interests. Academic research in this field furthers our knowledge of the role of public administrators, of different organisational structures, of the people who work at such organisations and of how these organisations implement…

We would all like to live in a world in which individuals feel safe, conflicts are resolved peacefully and the interests of future generations are taken into consideration. At Leiden University legal scholars investigate to what extent public international law meets the needs of a globalised society.…

If a society is to be secure, sustainable and resilient, conflicting interests must be reconciled. Researchers at Leiden University study the behaviour of individuals, groups and states in relation to this issue, and use their knowledge to promote equality within and between communities.

Both good employer practices and good employee practices are open norms. These open norms can lead to uncertainty about what employers should focus on and what rights (and obligations) employees have in that respect. The objective of this study is to give substance to the norm of good employment practices…

This project aims to link robot development and policymaking to reduce the complexity in robot legal compliance in the context of COVR.

A punishment that fits the crime is the cornerstone of the rechtsstaat or constitutional state. But opinions differ greatly on what constitutes a just and effective punishment. Research by Leiden University provides politicians, legislators, law enforcers and the public with new information and insights…

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