In de geest van ‘eenheid door verscheidenheid’ is ons doel het bevorderen van inzicht in en waardering voor het wonder dat dezelfde natuurkundige wetten en wiskundige concepten van toepassing zijn op de hele natuur, van de grootste tot de kleinste energie- en lengteschalen. Wij streven naar de toepassing…

Deze master specialisatie behandelt een breed scala aan wetenschappelijke onderwerpen, waaronder High Energy Physics and Particle Cosmology, Theoretical Physics of Life Processes en Condensed Matter Theory.

Waar gaan de quantummechanica, de relativiteitstheorie en de zwaartekracht elkaar vinden? Wat is het missende stukje? Of is er een compleet nieuwe theorie die alle vormen van materie elegant beschrijft?

In this thesis we study the landscape of gravitational models which modify GR by introducing an additional scalar degree of freedom (d.o.f.) to source Cosmic Acceleration.

The research presented in this thesis concerns one of the most important questions in software engineering of our time: how can we make sure that software is free from memory safety bugs?

Promotores: Prof.dr. J. Schaye, Prof.dr. S.D.M. White (MPA Garching)

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

The theoretical explanation of cosmic acceleration is nowadays one of the biggest puzzles in cosmology.

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

In de masteropleiding Linguistics (specialisation) van de Universiteit Leiden kun je kiezen uit acht thema's: Applied Linguistics; Comparative Indo-European Linguistics; Computational Linguistics; Language and Communication; Language Description and Documentation; Language Processing and Cognition;…

The work in this thesis demonstrates how to obtain an atomic-scale picture of a diverse set of complex surface structures observed using STM, under disparate conditions.

This thesis describes a study from both a theoreticaL and an experimental point of view.

This thesis is a collection of theoretical works aiming at adjusting quantum algorithms to the hardware of quantum computers.

This thesis explores the theoretical and observational properties of distant massive galaxies that harbour active black holes in their centres and shine brightly at radio wavelengths.

Promotor: Prof.dr. C.W.J. Beenakker

Op 7 december 2021 verdedigde Georgina Kuipers het proefschrift 'Beschadigd vertrouwen'. Het promotieonderzoek is begeleid door prof.mr. W. den Ouden en prof.dr. M.A. van der Steen (EUR).

Wil je een volledige academische opleiding? Dan ga je na je bachelor door met een masteropleiding. Met een masterdiploma op zak heb je meer kans op een baan op academisch niveau. Na afronding krijg je de titel Master of Arts (MA).

This thesis contributes to studying primordial cosmology theories and their detectability in future observations.

Public Administration is a major refereed journal publishing articles on public administration, public policy and public management.

Catalysis is of extreme relevance in the production of everyday materials and plays a central role in many aspects of our life.

This thesis aims to enhance our understanding of galaxies by testing theoretical models of galaxy formation against observations, particularly in the cases of extreme systems which have been found to have an excess of baryonic mass in their central regions, in the form of either supermassive black holes…

Het FAIRDOM-consortium is een open initiatief van verschillende partners, waaronder financieringsprogramma's, grote consortia, instituten, kleine groepen en individuen.

Dit artikel onderzoekt in hoeverre bureaucratische respons afhangt van de bron, de inhoud en de opvallendheid.

Optical cavities are useful tools to enhance the interaction between light and matter, which is important to make good quantum emitters. However, it turns out that the cavities themselves (without any quantum emitters) are already interesting objects to study.

This thesis is dedicated to the exploration of the primordial dark ages: unknown physics during the earliest stages of the Universe’s expansion that have not yet been directly probed by observations. Cosmic inflation is a burst of exponential expansion of space after the “Big Bang”.

Promotor: G. J. Kroes

Dissociative chemisorption is an important reaction step in many catalytic reactions.

Biological polymers, including proteins and the genome, undergo folding processes crucial for their proper functioning. Even slight changes in the folding structure of these biopolymers can have significant implications, leading to the development of various pathological conditions, such as neurodegenerative…

The main theme of this thesis is the theoretical study of Gaussian processes as a tool in Bayesian nonparametric statistics.

De tweejarige masteropleiding Physics wordt aangeboden door het Leids Instituut voor Onderzoek in de Natuurkunde. De opleiding is theoretisch en experimenteel. Er is ruime aandacht voor onderzoekstraining. Ook bieden we veel keuzemogelijkheden en op maat gemaakte, individuele studieprogramma’s.

Na het afronden van de bacheloropleiding volgen verreweg de meeste studenten de masteropleiding.

We begrijpen niet hoe sommige materialen supergeleidend worden bij relatief hoge temperaturen. Leids natuurkundigen hebben nu een verrassende connectie gevonden met zwarte gaten. Het stelt ons in staat om onze kennis over zwarte gaten te gebruiken bij het oplossen van het mysterie van hoge-temperatuur…

Promotor: Thomas Hankemeier, Co-promotores: Heiko van der Linden, Paul Vulto

The research group Science Communication and Society aims to understand how science communication works to improve the interaction between science and society. Central themes are ‘Bridging the gap between experts and the general public’ and ‘Evaluating Science Communication’.

Promotor: R. Cramer

LIACS is a partner in RISE_SMA, an interdisciplinary, international network combining excellent scholars and practitioners to enable vigorous knowledge sharing and to develop solutions for contemporary challenges for Social Media Analytics (SMA).

Promotor: Prof.dr. G.R. de Snoo, Co-promotor: R. Heijungs

Majorana fermions in superconductors are the subgap quasiparticle excitations that are their own antiparticles.

Promotores: Prof.dr. B.R. Katzy, Prof.dr. K. Sailer (Munich University)

Promotores: J.C. van Houwelingen, S.A. van de Geer

Galaxies in the local Universe fall into two main categories of spirals and ellipticals. In this Thesis, we explore the structural evolution of galaxies into this bimodal distribution.

Mycorrhizas are symbiotic associations between soil fungi and most plant species.

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.

Understanding the formation and evolution of planetary systems is one of the most fundamental challenges in astronomy. To directly image and study young exoplanets and the circumstellar disks they form from, dedicated high-contrast imaging instruments are built.

Promotor: K.E. Schalm, Co-promotor: S.S. Lee

Promotor: Prof.dr. A.G.G.M. Tielens

Tin electrodeposition applications have rapidly evolved in the past 25 years.

We present an extensive study of methods for exactly solving stochastic constraint (optimisation) problems (SCPs) in network analysis. These problems are prevalent in science, governance and industry.