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

Professor Renata Kallosh (Stanford University), one of the world’s leading theoretical physicists, will be this summer’s Lorentz Professor at the Leiden institute for theoretical physics. Her main areas of interest are cosmology and string theory. She studied physics in Moscow, where she also obtained…

What if I completely changed everything? A subject without lectures or exams, where the right answer is not important and where students work with their hands. With this idea, Michiel Brentjens reformed the course Radioastronomy. His students are so enthusiastic about this approach that they nominated…

Theoretical physicist and cosmologist Alexey Boiarskyi has been appointed full professor per 1 October.

We are cosmologists, in other words we use physics to study the Universe, how it started and evolved into the structure that we observe around us.

An international team of astronomers, including Leiden PhD student Elia Pizzati, has observed several ancient quasars that, surprisingly, appear to be floating alone in the early universe (less than a billion years after the Big Bang). Until now, astronomers, based on models, assumed that quasars are…

You have ample opportunity to assemble your own study path in Cosmology. The courses cover the full spectrum from theoretical early universe to observational cosmology.

Antimicrobial drugs constitute a fundamental part of modern medicine. The global rise in antimicrobial resistance poses a major threat to global health.

In this thesis, mathematical modeling and simulation was applied as a tool to inform quantitative decision making in oncology drug discovery and development.

PhD defence

M. Danhof, Co-promotor: O.E. Della Pasqua

Growth hormone profiles are pulsatile and highly variable between individuals, limiting the implementation of mathemathical models to quantify an individual's secretion.

Promotors: Prof.dr. T.H.W. Bäck, Prof.dr. B. Sendhoff (Technische Universität Darmstadt)

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

Video interview with Subodh Patil, the new assistant professor in Theoretical Cosmology, about the gravitational waves, hidden universes, music, and whether Dutch, Danish and German fit into one brain.

By training with virtual opponents known as computer generated forces (CGFs), trainee fighter pilots can build the experience necessary for air combat operations, at a fraction of the cost of training with real aircraft.

As part of his guest professorship in Leiden, famous theoretical physicist Prof. Andrei Linde (Stanford University) gave a public lecture on June 23 at the prestigious Leidse Schouwburg in the historic city center. Linde is world-renowned for being one of the inventors of the theory of inflation, which…

What are the 'dark' components of the universe?

The Physics and Cosmology specialisation consists of 120 European Credit Transfer System (EC) points and consists of mandatory courses (33 EC), electives (27 EC) and two research projects (60 EC in total).

PhD defence

BlaC is the β-lactamase of Mycobacterium tuberculosis. We show that it can recover from inhibition by clavulanic acid and that phosphate helps it do so.

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.

The genetic information of all living organisms is contained in their DNA. Cells modify the degree of DNA compaction by epigenetics, which largely determines what genes are read out and which genes are transcriptionally silent.

The Astronomy and Cosmology specialisation consists of 120 European Credit Transfer System (EC) points and offers advanced Astronomy and Physics courses and two research projects.

You have ample opportunities to assemble your own study path. The courses cover the full spectrum from theoretical early universe to observational cosmology.

Find out how to apply for Research in Physics, Cosmology at Leiden University by following our step-by-step guide.

Do you have any questions about the master’s programme Research in Physics, Cosmology? Please contact us.

Find out how to apply for Astronomy and Cosmology at Leiden University by following our step-by-step guide.

In this thesis, the research focuses on the properties of dark matter and dark matter haloes and how they connect with the galaxies we can observe in the Universe.

Lecture

An international team of astronomers has discovered a large reservoir of hot gas in the cluster-in-formation around the Spiderweb Galaxy. Based partly on that hot gas, the astronomers predict that the cluster-in-formation will grow into one of the largest objects in the universe. A step closer to discovering…

Simulations of galaxies help researchers understand astronomical observations better. The EAGLE simulation, a large project in which Leiden astronomers play a leading role, shows the evolution of the Universe, from just after the Big Bang to the present day.

Lecture, Oort lecture

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…

By effectively integrating word-class scientific research and excellent education, you will become a professional astronomer with an internationally recognized degree.

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

This is the physics summer school of Leiden University. It is part of the Leiden Institute of Physics (LION). The summer school is intended for Bachelor (BSc) students in physics. It covers topics from quantum matter and optics, to biological & soft matter physics and cosmology and theoretical physics.…

Supervisor: S.F. Portegies Zwart Co-Supervisor: A.G.A. Brown

Promotoren: R. Tijdeman, A.K. Lenstra, Co-promotor: H.J.J. te Riele

Five promising researchers at Leiden's Faculty of Science have received a Veni award from NWO. They can use the award - of up to 250,000 euros - to carry out research over a three-year period. Of the total of seventeen Leiden Venis, four went to Leiden Observatory and one to Institute for Biology Le…

Studying Physics is an exciting journey through the foundations of nature: from the infinitesimal (particle physics) to the grandest scale (cosmology). Physics is a varied study programme that provides a solid foundation in theory and experimentation, with attention devoted to their practical applic…

Single-celled organisms have stiffer DNA than multicellular lifeforms like humans and rice. Theoretical physicists managed to simulate the folding in full genomes for the first time to reach this conclusion. Publication in Biophysical Journal on February 7.

PhD defence

He makes music, goes to the athletics track twice a week and, according to his supervisor, has done his research so well that it would not be out of place in a PhD research. Physics and astronomy student Hidde Stoffels' undergraduate research on the properties of dark matter is of such high quality…

Promotor: Prof.dr. S. Portegies Zwart

During my PhD research, I studied the photon statistics of light emitted by a microcavity that contains a single quantum dot (QD) on resonance.