The dissertation describes TEM experiments on heterogeneous catalysts.

Het Netherlands Centre for Electron Nanoscopy (NeCEN) in Leiden opent zijn deuren op 27 oktober 2011. NeCEN geeft iedereen toegang tot de meest geavanceerde cryo-transmissie-elektronenmicroscopen ter wereld. Tien academische partners, lokale en nationale overheden en bedrijven werkten samen om dit centrum…

Abeer Abazeed, promovendus aan het Institute of Security and Global Affairs, verdedigt op woensdag 21 april haar proefschrift. Vier vragen over haar promotie-onderzoek 'Is it One Nile? Civic engagement and hydropolitics in the Eastern Nile Basin’

De aanmelding van migranten en asielzoekers in Ter Apel is overbelast. Dat beeld is prominent in de media. In podcast De Verbranders gaan promovendi Neske Baerwaldt en Wiebe Ruijtenberg in gesprek om thema’s als migratie, grenzen en de vluchtende mens vanuit verschillende kanten te belichten.

Op 23 september jl. vond in het Hof van Saksen in Nooitgedacht (gemeente Aa en Hunze, provincie Drenthe) het jubileumcongres plaats ter gelegenheid van het honderdjarig bestaan van de Vereniging van Drentse Gemeenten. Tijdens deze bijeenkomst werd zowel teruggeblikt op als vooruitgekeken naar de samenwerking…

What are the pressing issues of our time, and how can different disciplines come together to address them? Studium Generale and Leiden University College (LUC) present the Global Challenges series: events that bring together researchers from LUC and experts from other disciplines to tackle a shared…

In het kader van Big Cat Month interviewde National Geographic professor Hans de Iongh, gastonderzoeker bij het Centrum voor Milieuwetenschappen Leiden (CML), over bescherming en behoud van leeuwenpopulaties in Afrika.

In this thesis, time-lapse fluorescent microscopy plays a pivotal role in investigating functional materials within living cells as well as the migratory behaviour of neural progenitor cells.

CrO2, a half-metal ferromagnet, has shown great promise for superconducting spintronics applications for nearly two decades.

The thesis mainly contributes to the characterization of Majorana fermions as they appear in the Condensed Matter context.

Promotor: J.W.M. Frenken Co-Promotor: R. Felici

The studies in this thesis are focused on the physical effects in the flat band materials. The results contain the discovery of strong enhancement of RKKY spin-spin interactions with specific geometric arrangement and dynamical generation of excitonic order parameter with high magnitude.

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

Gold nanorods are biocompatible nanoparticles that present an excellent two-photon signal that can be used to get high spatial resolution inside living cells. Gold nanorods are photostable and therefore can be followed inside cells for long time, with possible applications as trackers in live cells.

Mechanical interactions between cells and their environment play an important role in many biological processes.

In this thesis, classes of strongly interacting quantum field theories, have been studied.

This thesis examines silicon pore optics (SPO), a technology that exploits silicon wafers from the semiconductor industry to create extremely high quality X-ray optics, by studying its manufacturing process, applications, and prospects.

In this thesis I describe the results of Pulsed Interleaved Excitation and Fluorescence (Cross) Correlation Spectroscopy (PIE-F(C)CS) combined with single-pair Förster Resonance Energy Transfer (spFRET) used to study dynamics in single nucleosomes, which depends on subtle differences in the length of…

This thesis consists of two subjects, that are both a consequence of radiation pressure.

Promotores: Prof.dr. D. Bouwmeester, Prof.dr. A. Fiore (TU Eindhoven)

A Josephson junction is a device where a thin insulating barrier or a nanostructure is placed between two superconducting leads. Such a junction is essential to superconducting qubits that store quantum information due to its anharmonic spectrum.

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

The interest of this thesis lies in spin transport in normal metals and superconducting half-metallic junctions.

In unconventional high temperature superconductors, supercurrent vortices are known to spoil the Landau levels. In this thesis the emergence of Landau levels is studied in different types of superconductors: Weyl superconductors, and the Fu-Kane heterostructure.

Promotie

Twintig jaar geleden verliet de succesvolle hoogleraar Nederlandse letterkunde tot de Romantiek Frits van Oostrom de Leidse faculteit Geesteswetenschappen om universiteitshoogleraar in Utrecht te worden. Maar zijn Leidse vakgenoten zijn hem niet vergeten, integendeel! Vanwege Van Oostroms naderende…

Van onderwijs tot een verrijkende ervaring

Quantum computing is an emerging technology, which holds the potential to simulate complex quantum systems beyond the reach of classical numerical methods.Despite recent formidable advancements in quantum hardware, constructing a quantum computer capable of performing useful calculations remains challenging.In…

Onderzoeksgroepen in het Quantum Matter & Optics onderzoeksprogramma onderzoeken elektronische eigenschappen van interacties van materie en lichtmaterie, met de nadruk op quantuminformatie.

The first direct detection of gravitational waves opened the possibility of mapping the Universe via this new and independent messenger.

In this Ph.D. thesis we study the interaction of low energy electrons with thin materials, namely layered materials (graphene, hexagonal boron nitride, molybdenum disulfide) and organic films. At these low energies the quantum mechanical wavelength of the electron wave function is in the order of a…

A plasma is an ionized gas with very low electrical resistivity. As such, magnetic field lines are 'frozen in' and move with the fluid. Magnetic field lines that are linked, knotted and tangled, cannot be undone by the fluid motions.

It has been a long-standing mystery how complex biological structures emerge from such seemingly uncoordinated building blocks as cells and tissues, in the presence of only minimal environmental guidance.

In this dissertation, we work towards an experiment in which we aim to bring a micrometer sized magnet at the tip of a soft cantilever into a superposition.

Because thin systems can deform along the thickness with relative ease, the interplay between surface mechanics and geometry plays a fundamental role in sculpting their three-dimensional shape.

In this thesis we investigated the ability of two-photon multifocal microscopy for single-molecule microscopy in live cells and organisms.

Promotor: A. Achúcarro, Co-Promotor: G.A. Palma

In the traditional theory of linear elasticity, superposition dictates that the response of a material does not depend on the sequence of the applied mechanical actuations.

This thesis covers several aspects of quantum algorithms for near-term quantum computers and its applications to quantum chemistry and material science.

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

This thesis focuses on amyloid proteins, a class of proteins that convert into amyloid fibrils.

In this thesis we use Josephson and noise scanning tunneling microscopy for the study of conventional, unconventional (iron-based) and disordered superconductors. On the one hand, Josephson scanning tunneling microscopy allows us to directly visualize the superfluid density with high spatial resolut…

In this thesis, we have used numerical approaches to study the effects of translational symmetry breaking on strange metallic systems as realised by the holographic duality⁠.

In this Thesis, novel charge induction mechanisms of ionic liquids are treated, tested and experimented on complex oxides, in particular cuprates.

In this thesis we study quantum transport phenomena on the nanometer scale, in two classes of materials: topological insulators with induced superconductivity and graphene superlattices.

Errors are everywhere, and mechanical failures are especially common: buckled grain silos and cracked support columns are, justly, seen as an issue to be avoided.

In this work the reconstruction of a tau neutrino signal in the KM3NeT detector is discussed.

This thesis explores interfacial conductance and electric field-effects in LaAlO3/SrTiO3 heterostructures.

This thesis is about cosmological inflation and its relation to observations.