PhD defence

The government is investing 646 million euros and has set aside a further 3.5 billion to drive economic growth in the Netherlands. Much of the National Growth Fund will be used for scientific innovations. Leiden University is involved in three of the projects.

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…

The Joan van der Waals colloquium is an ongoing bi-weekly lecture series.

For many years, he was active in various management positions at the LION and even after his retirement he is still very involved. Professor Jan Aarts leads the Leiden hub of the Quantum Delta NL growth fund and is now temporarily responsible for national educational activities. In this way, he is helping…

The Leiden Institute of Physics (LION) offers bachelor and master level education in physics at Leiden University.

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.

A full overview of THEOR PhD theses.

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

Our cantilevers have a low intrinsic damping rate: this enables us to measure with low noise, since damping is proportionate to noise. However, when the magnet is close to the surface of a sample we want to study, we measure a much higher effective damping rate. This is caused by magnetic interaction…

Single-molecule spectroscopy has become a powerful method for using organic fluorescent molecules in numerous applications.

The specialisation consists of 120 European Credit Transfer System (EC) points and includes mandatory courses and electives (60 EC) and two research projects (60 EC).

The programme offers you the ability to combine experimental research with theoretical courses. The programme helps you grow into an independent and skilled physicist.

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…

The specialisation consists of 120 European Credit Transfer System (EC) points and includes mandatory courses and electives (60 EC) and two research projects (60 EC).

Do you have any questions about the master’s programme Research in Physics: Classical/Quantum Information? Please contact us.

On November 21, theoretical physicist Juan Maldacena gives the Ehrenfest Colloquium. Maldacena is known worldwide as the inventor of AdS/CFT correspondence, which might be key to a theory of quantum gravity. Maldacena is winner of the prestigious Dirac Prize and the Breakthrough Prize in Fundamental…

On 9 September, in the presence of King Willem Alexander, Secretary of State Sander Dekker presented the Spinoza Prize to four researchers, including two researchers from Leiden: archaeologist Corinne Hofman and physicist Dirk Bouwmeester. In the Nieuwe Kerk in The Hague, they unveiled their plans for…

For the International Day of Women and Girls in Science, women students and researchers from physics talk about what inspires them about their work. From quantum to cosmology and biophysics, their curiosity about how nature works is what connects these women. What do these 5 scientists want to share…

In the thesis we demonstrated an 85% state transfer efficiency between two mechanical modes coupled to a common optical mode via stimulated Raman adiabatic passage (STIRAP) in the classical regime. We also showed possibilities to manipulate quantum states of the mechanical modes via STIRAP.

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

Three of the four Heineken Young Scientists Awards for 2022 have gone to researchers from Leiden: chronobiologist Laura Kervezee, physicist Jordi Tura i Brugués and health psychologist Liesbeth van Vliet.

Vibrating carbon monoxide molecules adsorbed at the surface of a salt crystal stop moving after a few milliseconds. Scientists now discovered this is dominantly due to the emission of electromagnetic waves. The role of the chemical bond at the surface thereby appears to be less important than previously…

Carlo Beenakker has been appointed a Fellow of the American Association for the Advancement of Science (AAAS), the organisation behind the journal Science. Among the Fellows, he is the third Dutch person and first Leiden researcher.

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.

We explore the particle physics and quantum world at the time of the big bang.

PhD defence

PhD defence

PhD defence

Matthias Flór receives the KHMW Graduation Prize in Theoretical Physics for his master's thesis. His research on exotic superconductors at Leiden University and TU Delft struck a chord with the jury. The jury unanimously chose to award Flór noting that ‘he demonstrated impressive technical abilities…

The MSc programme Physics offers 5 research-oriented specialisations where you can focus on Theoretical Physics, Quantum Matter and Optics, Biological and Soft Matter, or Cosmology. You can also combine Physics with education, management or science communication.

On Wednesday September 26th, theoretical physicist Sean Carroll will give an Ehrenfest colloquium. It is part of a lecture series that has been running since 1912 and was founded by physicist Paul Ehrenfest.

PhD defence

Leiden scientists and companies receive 1.37 million euros to develop technology for the Einstein Telescope. This underground telescope will measure gravitational waves and must therefore be extremely sensitive. To that end, the consortium conducts research on the damping of vibrations at temperatures…

Research on quantum computers and Islamic charities: two Leiden researchers have received a Consolidator Grant from the European Research Council.

Two Leiden Science researchers received an NWO-XS grant for their research. Both projects are highly promising, but also high-risk. Macrophages that trap bacteria and data storage made from 2D materials convinced the board of their potential.

Cryptographer Max Fillinger developed new methods to analyse a group of algorithms called commitments schemes. These schemes are building blocks for cryptographic protocols, which enable multiple parties that do not trust each other to work together safely. His PhD Defence is on 19 March.

To be able to measure small forces or small deviations from Boltzmann, the external vibrations at the resonance frequency must be very low. To achieve this, we have developed a very soft vibration isolation system and combine it with several other measures to reduce vibrations in our dilution refrigerators.…

An overview of awards and prizes granted to our staff and students in 2022, as well as special appointments at Leiden University and other institutions.

The master’s programme Physics at Leiden University offers a wide range of specialisations from theoretical research to cosmology. You will be trained for a career in research or for a more practical-oriented specialisation. The programme offers a wide choice of individual study paths that take into…

PhD defence

The following master research projects are currently open in the Bouwmeester group.

Every year, the Leiden Institute of Physics (LION) organises the Science Day. The goal is to highlight the newest research at LION, to socialise, and to welcome first year master students and new PhD candidates to our institute.

Lecture

Lecture

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

The first book ever on information-theoretically secure multiparty computation

We develop open micro cavities to trap light in small volumes and thereby increase the interaction with intra-cavity emitters. Important aspects in this development are the optical penetration in the mirrors, coupling between optical modes, and scattering and clipping losses.