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The elementary excitations of magnets are called spin waves, and their corresponding quasi-particles are known as magnons. The rapidly growing field of Magnonics aims at using them as information carriers in a new generation of electronic devices, (almost) free of electric currents.

Erik de Maaker, B. Ramila, Maaike Feitsma, Mayke Groffen, Ellen Haeser, Rachel Lee, M. Karthika, Leonie Sterenborg and Sanne van den Dungen

Theorists have recently made substantial progress in simulating reactive molecule-metal surface scattering but still face major challenges. The grand challenge is to develop an approach that enables accurate predictive calculations of reactions involving electronically excited states with potential…

Triplet superconductivity refers to a condensate of equal-spin Cooper pairs (pairs of electrons with equal spin).

An objective of this research was to achieve direct, well-defined and non-rate-limiting electron transfer between respiratory enzymes and the electrode surface by means of 'Q-wires'.

Electrons in graphene behave like light particles; they have no mass and can penetrate everything: very useful if you dream about nano-electronics. But you do have to channel them. Carlo Beenakker will be researching how. He has been awarded an ERC Advanced Grant of 1.5 million euro to carry out this…

How do you make a technology sustainable that does not even exist yet? Well, by bringing together an interdisciplinary team of pioneering European experts right at the start and paying attention to sustainability right from the development phase.

The master’s specialisation Research in Physics, Quantum Matter and Optics at Leiden University offers a thorough experience on the front line of physics research with a practical training of communicative and computer skills. The programme focuses on Condensed Matter problems, such as Molecular Electronics,…

As a virtually inexhaustible source, solar energy plays a major role in future global energy scenarios.

Africa has a population of 1.5 billion. In 30 years’ time, this will be 2.5 billion. The continent’s impact on the global economy, but also on the environment, will therefore increase drastically. Researchers from the African Studies Centre Leiden (ASCL) have been aware for decades of the crucial role…

The logo of Leiden University, with letters as small as a bacterium. Researchers from LUMC and the Institute of Biology have created the smallest logo of our university ever produced. It is a piece of fun with a serious real-world application: the new microscope with which the logo was made allows scientists…

Anmol Dhawan (24) graduated cum laude from the Advanced LLM in Air and Space Law in Leiden on 28 August 2023. He comes from Mumbai in India and did his bachelor law studies at National Law University Delhi. He has been in the Netherlands since September 2022, so over one year now.

The main research theme in the group of Dennis Hetterscheid is to understand and mimic bioinorganic multi-electron processes that are relevant to our future energy infrastructure. Reduction of protons generates hydrogen that can be used as a chemical fuel. Alternatively to gaseous hydrogen, the reduction…

docARTES is a doctoral programme for performers and composers. It offers a unique environment for critical reflection on musical practice.

Conference

Geometric phases lead to a nontrivial interference result when an electron's different quantum mechanical paths choices encircle a magnetic coil in an Aharonov-Bohm experiment.

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

The CMCB brings together a diverse range of unique expertise in microbial cell biology. Members of the CMCB investigate both model and non-model organisms, bacteria and archaea, pathogens and non-pathogens.

Advanced sensing techniques require graphene with high quality and well-controlled surface chemistry.

Three projects with Leiden researchers are to receive a subsidy from NWO for the construction or renovation of large-scale research facilities. They will be working on electron microscopy, an X-omics initiative and an X-ray telescope. The projects are part of the National Roadmap for Large-Scale Scientific…

In Mapping the Pāśupata Landscape: Narrative, Place, and the Śaiva Imaginary in Early Medieval North India, Elizabeth A. Cecil explores the sacred geography of the earliest community of Śiva devotees called the Pāśupatas.

Fundamental research in the ALgebra, Geometry And Number Theory

Global Challenges is the research programme of the Leiden Institute of Cultural Anthropology and Development Sociology.

This programma, an initiative of the Institute for History in partnership with Universitas Gadjah Mada (UGM) in Yogyakarta. Aims to study more than 20 kilometers of Dutch archival materials in The Netherlands, Indonesia, India, Sri Lanka and South Africa.

Freezing bacteria super fast to gain a true-to-nature image of the internal and external structure. Ariane Briegel Professor of Ultrastructural Biology came to Leiden specially to carry out this research. Leiden University is one of the few institutes in the world to have the necessary equipment. Inaugural…

During the Leiden Science Family Day, you will visit places that are normally closed to the public: go backstage at the Faculty of Science!

Lecture, VVIK Lecture

Even a small quantum computer should be able to simulate exactly the properties and behaviour of new molecules. This would take chemistry to an entirely new level. Better solar panels, more powerful batteries, saving lots of energy in the chemical industry: the applications have the potential to transform…

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,…

Research report January 2020. Supported by the lectorate ‘Music, Education and Society’, research group ‘Making in Music’, Royal Conservatoire The Hague

Truth is stranger than fiction. In 1997 Juan Maldaceña discovered a remarkable dictionary that translates equation for equation the physics of black holes in string theory into the more conventional physics of quantum mechanics of interacting particles. The remarkable possibility exists that…

Make more fluid: In condensed matter systems, electrons can acquire unusual properties from their interaction with the atomic lattice.

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

Recently the WTO panel report on India – Solar Cells (DS 456) was distributed. Under India’s Jawaharlal Nehru National Solar Mission (JNNSM), solar power developers were required to use certain types of solar cells and modules manufactured in India for power generation projects in order to ultimately…

Can process-oriented dynamic testing be applied to everyday educational practice?

This perspective addresses four challenges facing theorists whose aim is to make quantitatively accurate predictions for reactions of molecules on metal surfaces, and suggests ways of meeting these challenges, focusing on dissociative chemisorption reactions of H2, N2, and CH4.

Promotor: Prof.dr. T.J. Aartsma, Co-promotor: R.N. Frese

Cryogenic electron microscopy (cryo-EM) is a powerful technique used to visualize the inside of cells and to study specific protein complexes. Within this thesis, I describe the use of various cryo-EM techniques to gain insight into the structural changes of the human pathogen, Vibrio cholerae, as it…

PhD defence

Lecture

Despite the fact that gold nanoparticles (GNPs) are one of the most studied nanoparticles, there is still a necessity for new approaches allowing for effective protective coating to enable wider use of GNPs in biomedical applications.

Lecture, Lunch Research Seminar

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.

Promotores: G.R. de Snoo, B. Sinsin, Co-Promotor: H.H. de Iongh