583 search results for “quantum physics” in the Public website
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Prepare for your studies
You’ve been accepted! Leiden University looks forward to welcoming you as a new student. Your next step is to prepare for your studies. Below you can find some tips to help you get a head start as you embark on your studies at Leiden University.
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Theory
Many important topics in computer science, such as the correctness of software, the efficiency of algorithms and the modeling of complicated systems, depend on sound theoretical underpinnings. In the Theory group, we study these fundamental building blocks and develop verification methods to prove system…
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Joan van der Waals colloquium
The Joan van der Waals colloquium is an ongoing bi-weekly lecture series.
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Discoveries in 2023
From nanoparticles to colliding ice planets and from biological origami to new x-ray scanner techniques: this year again, our scientists have made wonderful discoveries. From the largest numbers to the smallest molecules and from the oldest galaxies up to the latest algorithms, take a look at each institute's…
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Diagnosing patients with the help of statistical physics
Doctors are there to diagnose and treat people. But sometimes a diagnosis can’t be made or doctors differ in opinion. Luckily, Alireza Mashaghi Tabari and his research team have developed a new framework to solve medical diagnostic problems. This framework can also be applied to many other research…
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The robust qubit: the Zen particle
A couple of years ago, theoretical physicist Carlo Beenakker tracked down the Majorana particles and inspired Leo Kouwenhoven from TU Delft to try to create them in a superconducting nano-structure. He succeeded in doing so in 2012, and the news made headlines around the world. But a lot of work still…
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Frontiers of Nanoscience (NanoFront)
Can we make quantum devices from quantum surprises? And can we explore and build life from the nanoscale up?
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Government pledges millions for economic growth
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.
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Coherent dynamics in solar energy transduction
Promotor: Huub de Groot, Co-promotor: Francesco Buda
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Huub de Groot
Science
groot_h@chem.leidenuniv.nl | +31 71 527 4539
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Spin-momentum locking in oxide interfaces and in Weyl semimetals
Electrons in a crystal lattice have properties that may differ from those of a free electron in vacuum.
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Inaugural lecture: X-ray diagnostics in space: Lines in the universe
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Awards and Grants 2023
On this page you will find an overview of awards and prizes granted to our staff and students in 2023, as well as special appointments at Leiden University and other institutions.
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eV-TEM: Transmission Electron Microscopy with few-eV Electrons
Electron microscopy has become an extremely important techniquein a wide variety of elds.
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Required documents
When you apply for admission, you’ll be asked to submit several documents.
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Extra-curricular
Are you interested in taking up an extra challenge during your master’s programme? Have you thought about applying for our Summer School programme or are you interested in developing your personal leadership style?
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Visualizing strongly-correlated electrons with a novel scanning tunneling microscope
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.
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Paradox in superconductivity at high temperature
Nature publishes an article on a paradoxical discovery in superconductivity. Physicists are searching for superconductivity at high temperatures so that less cooling is needed in for example MRI machines. News & Views article by Prof. Jan Zaanen in the same issue of August 19th.
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Magnetic resonance force microscopy for condensed matter
In this thesis, we show how MRFM can usefully contribute to the field of condensed-matter.
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New book on history electron microscopy including Leiden Physics
On February 2nd the book Beelden zonder weerga appears, written by professor in science history Dirk van Delft and biochemist Ton van Helvoort. They describe the rich history of electron microscopy, which comes to a conclusion in the final chapter with the current state-of-the-art ESCHER microscope…
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Lattice models for Josephson junctions and graphene superlattices
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.
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Highly Accurate Simulations and Benchmarking of Molecule-Surface Reactions
Heterogeneous catalyzed processes are highly significant to the chemical industry. Dissociative chemisorption (DC) of molecules on surfaces is always considered as a step with a high degree of rate control for heterogeneous catalysis.
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Chemical functionalization of the graphene surface for electrical and electrochemical sensing application
Advanced sensing techniques require graphene with high quality and well-controlled surface chemistry.
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Why Leiden University?
The Physics and Education master specialisation gives you the opportunity to combine physics research with an excellent education in becoming a physics teacher.
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Why Leiden University?
The Physics and SCS master specialisation gives you the opportunity to combine Physics research with different aspects of science communication.
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Why Leiden University?
World-class research is integral part of the master’s education. You obtain a Physics degree from an institute with an international reputation. Research in this programme is fundamental and curiosity-driven.
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Theory
Many important topics in computer science, such as the correctness of software, the efficiency of algorithms and the modeling of complicated systems, depend on sound theoretical underpinnings. In the Theory group, we study these fundamental building blocks and develop verification methods to prove system…
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Prominent physicist Maldacena gives Ehrenfest Colloquium
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…
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On transport properties of Majorana fermions in superconductors: free & interacting
Majorana fermions in superconductors are the subgap quasiparticle excitations that are their own antiparticles.
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Carlo Beenakker Group - Theoretical Nanophysics
Our world is shrinking, or at least our electronic devices are. From PCs to mobile phones: everything is smaller and thinner. The smaller the chip, the better it can conduct electricity and pass on information.
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Molecular Biology for Physics will NOW start on Monday 5 February!
Please note that the course Molecular Biology for Physics will start on Monday 5 February. Please check the schedules for the time and location!
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Research
Research at the THEOR group is comprised of the following research themes:
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Foundations of Computing (MSc)
The master's specialisation Bioinformatics at Leiden University focuses on research, development and application of computational tools and approaches for expanding the use of biological, medical, behavioral and health data.
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System Verification Lab (SVL)
The correctness of computational systems is of great importance to our society, since it becomes ever more reliant on the benefits of computing.
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Where photons meet phonons
We investigate how radiation pressure can be used to influence the mechanical motion of a micro-mirror suspended from springs.
- Application deadlines
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Required documents
When you apply for admission, you’ll be asked to submit several documents.
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Searching for an explanation for remarkable behaviour of ice on Earth
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…
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Vibration Isolation
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.…
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dis/cord : Thinking Sound through Agential Realism
ACPA alumnus Kevin Toksöz Fairbairn has just published a new book at Punctum Books - dis/cord: Thinking Sound through Agential Realism.
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Computer Science at Leiden University
Leiden Institute of Advanced Computer Science (LIACS)
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Setup: Static Magnetic Field with Low Noise
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…
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Geometric phases in soft materials
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.
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Surface Temperature and the Dynamics of H2 on Cu(111)
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…
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PhD Theses
A full overview of THEOR PhD theses.
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Strings and AdS/CFT at finite density
Promotor: Prof.dr. J. Zaanen, A. Parnachev
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Development of highly accurate density functionals for H2 dissociation on transition metals
Metals surfaces form a group of effective catalysts for the reaction of small molecules such as hydrogen (H2).
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Stimulated Raman Adiabatic Passage in Optomechanics
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.