With the help of quantum mechanics, digital quantum hardware may be able to tackle some of the problems that are too difficult for ordinary computers. But despite these expectations and the ongoing effort of the research community, reliable quantum computers are not yet realized in a lab setting.

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: J. Zaanen, Co-Promotor: V. Juricic

The main focus of this thesis is the behaviour of two-dimensional materials, namely (anti)-ferromagnetic materials in the first two chapters, which show topological phases, and energetic square ice in the third and fourth chapter.

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

Promotie

Promotor: S.M. Verduyn Lunel, Co-promotoren: M.F.E. de Jeu, S.D. Silvestrov

Promotor: H.V.J. Linnartz

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.

Promotor: Prof.dr.ir. J.W.M. Hilgenkamp, Prof.dr. J. van den Brink

Promotie

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

Promotor: P. Stevenhagen, Co-promotor: R.M. van Luijk

Bij Geesteswetenschappen leer je de wereld kennen.

‘Moslims en islam zijn niet iets wat Europa is overkomen, ze zijn onderdeel van Europa. Sterker nog, de islam is een van de grootste constanten in de Europese geschiedenis’. Dat beargumenteert hoogleraar Maurits Berger in de Engelstalige podcastserie 'History of Islam in Europe' van de Faculteit Gee…

Promotor: Prof.dr. M.L. van Hecke

Promotoren: Prof.dr. G.R. de Snoo en Dr. R. Heijungs

Onderzoeksgroepen in het Biological & Soft Matter onderzoeksprogramma ontrafelen de mechanismen in biologische processen en ontwikkelen nieuwe zachte materialen die geïnspireerd zijn door de natuur.

Galaxies are environments where gas coalesces, cools, and is converted into stars. However, it remains unclear the exact mechanisms through which galaxies acquire, redistribute and lose their gas.

This thesis aims to demonstrate how the achromatic nature and design flexibility of liquid-crystal optics can be used to improve high-contrast imaging instruments to facilitate detailed exoplanet characterization.

It is an established fact that the Standard Model has to be extended to explain the so-called Beyond the Standard Model (BSM) phenomena: dark matter, matter-antimatter asymmetry of the Universe and neutrino flavour oscillations.

The key characteristic of active matter is the motion of an emergent collection (such as a flock of birds), which is driven by the consumption of energy by its active components (i.e. individual birds).

Like a mixture of oil and water, lipid membranes separate into two liquid phases.

Materials with strongly correlated electrons show some of the most mysterious and exotic phases of quantum matter, such as unconventional superconductivity, quantum criticality and strange metal phase.

Wiskunde en Natuurwetenschappen, Leids Instituut voor Onderzoek in de Natuurkunde (LION)

Of all the mass in our Universe, 80% is thought to consist of a hypothetical and invisible substance called dark matter (DM).

This thesis describes the functional analysis of the Arabidopsis AHL15 gene.

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

Promotor: Prof.dr. J. Schaye, Co-promotor: Marcello Cacciato

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

In deze master specialisatie ligt de focus op het begrijpen van biologische processen in hun natuurlijke context, zoals cellen en weefsels.

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.

Hoe kunnen we de mysteries van quantummaterie verklaren?

Promotie

Wiskunde en Natuurwetenschappen, Leids Instituut voor Onderzoek in de Natuurkunde (LION)

Een experimentele analse van de impact van liberale normen op steun voor of afwijzing van oorlogsvoering onder een groep mensen die zijn gesocialiseerd in een democratie (Nederland) en een groep die altijd heeft geleefd in een autocratie (China) toont aan dat het liberale gehalte in de democratische…

Promotor: Koen Kuijken Co-promotor: Henk Hoekstra

Promotie

Tijdens het spelen van online games kunnen conflicten ontstaan. Novin, Bos, Stevenson en Rieffe onderzochten in dit artikel welke factoren maken dat de ene jongere daarbij bozer reageert dan de andere. In hun realistisch nagemaakte spel begon de zogenaamde medespeler plotseling te mopperen dat de deelnemer…

Promotie

At the largest scales, two ingredients dictate the distribution of matter in the Universe. The first is dark matter, acting as an invisible scaffolding held together by gravitational forces.

This thesis is largely an experimental study on the formation of solid-state simple and complex organic molecules in the H2O-rich and CO-rich ice phases of dense interstellar clouds and dark cores.

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

Promotor: C. W. J. Beenakker, Co-promotor: J. K. Asboth

Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L.B.F.M. Waters (UvA), Prof.dr. C. Dominik (UvA)

Promotor: C. W. J. Beenakker, Yu. V. Nazarov, Co-promotor: J. Tworzydlo

Promotie

Atoms and molecules are the basic units of matter. If we keep dividing a bar of gold or a glass of water into smaller parts, at the end we are left with a single gold atom or a water molecule.