844 search results for “quantum optics” in the Public website
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5 years Quantum Rules lab: ‘The best part is when you hear the penny drop with a student’
Quantum Rules lab van Leiden Universiteit biedt proefjes en experimenten voor middelbare scholieren om te leren over kwantum natuurkunde. Henk Buisman vertelt over het 5 jarige jubileum.
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Joon Hyung Lee
Science
j.h.lee@liacs.leidenuniv.nl | +31 71 527 2727
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Molecular electronics: Controlled manipulation, noise and graphene architecture
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.
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Theoretical Physics
In the spirit of 'unity in diversity', our objective is to promote insight into and appreciation for the wonder that the same physical laws and mathematical concepts apply to the whole of nature, from the largest to the smallest energy and length scales. We strive for the application of abstract theoretical…
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Working at the Faculty of Science
Working for a top faculty? Discover the vacancies at the Faculty of Science and apply immediately.
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New method to find Majorana’s tested for the first time
Jianfeng Ge and Milan Allen of Leiden University look for majorana quasiparticles using shot noise measurements
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Silicon pore optics for high-energy optical systems
PhD defence
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Huub Rottgering
Science
rottgering@strw.leidenuniv.nl | +31 71 527 5851
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LION Summer School: Modern Physics at all Scales
From 16 to 26 July, the Leiden Institute of Physics organizes its annual summer school, titled ‘Modern Physics at all Scales’.
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Physics Summer School kicks off
From July 22nd to August 1st, the Leiden Institute of Physics organizes its annual summer school, titled ‘Modern Physics at all Scales’.
- Van Marum Colloquium: Guilty as charged: Electrochemical control over the charge carrier density in colloidal semiconductor nanomaterials
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Measuring the pull of gravity on a micron-sized particle
Tjerk Oosterkamp of the Leiden Institute of Physics managed to do the first-ever measurement of gravity on a tiny particle - just 0.43 milligrams - where the quantum regime starts. He explains in Physics World why this is so challenging.
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Bachelor's research on ultra-thin nanochip nominated for Young Talent Award
Using 2D materials, physics student Romme van der Kemp developed a nanochip that is extremely small ánd scalable. This is needed to make all kinds of technologies better, faster and smaller. He has been nominated for the FWN Young Talent Award 2023 for his research.
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Light manipulated with large artificial atom
Physicists have manipulated light with large artificial atoms, so-called quantum dots. Before, this has only been done so well with actual atoms. It is an important step towards light-based quantum technology. Publication on August 30th in Nature Communications.
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ERC Advanced Grant for Carlo Beenakker to ‘braid’ Majorana fermions
Theoretical physicist Carlo Beenakker has been awarded a €2m Advanced Grant by the European Research Council (ERC). He will use this to try to create the ideal building blocks for a quantum computer: ‘braided’ Majorana fermions. An ambitious project that may just lead to a major breakthrough.
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Léo Ducas appointed professor of Mathematical Cryptology
In cryptography, the sky is the limit according to the new professor Mathematical Cryptology Léo Ducas. He already designed several cryptosystems as part of his research at the Centrum Wiskunde & Informatica (CWI), some of which might soon be adopted as new international standards. Since December,…
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Uniform infinite and Gibbs causal triangulations
Promotor: Richard D. Gill
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Taking control of charge transfer: strategic design for solar cells
Promotor: Huub J.M. de Groot, Co-promotor: Francesco Buda
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How deep is a mirror?
Light reflects from a mirror, but where exactly does this reflection happen? Well, it depends, Martin van Exter and Corné Koks discovered. Their precise calculations, published in Optics Express, are important for designing optical cavities for quantum communication.
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FOM Grant for Theoretical Model Majorana Gun
Professor Carlo Beenakker has been awarded a FOM Projectruimte subsidy to build a theoretical model of a majorana gun, a very promising instrument for quantum computers.
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Cryptanalysis research of prof. Ronald Cramer in WIRED
The American magazine WIRED recently published an article on ‘quantum-safe public key encryption’.
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Optimization of quantum algorithms for near-term quantum computers
PhD defence
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Using tweezers of light to study the misfolding proteins of muscular diseases
Alireza Mashaghi from the Leiden Academic Centre for Drug Research (LACDR) will use state-of-the-art technology to investigate proteins that play a role in muscular dystrophy. His goal is to provide new insights for designing novel therapeutic strategies in the future. To accomplish this, Mashaghi receives…
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Lieuwe Vinkhuijzen third in VERSEN Master Thesis Award
PhD candidate Lieuwe Vinkhuijzen received the VERSEN Master Thesis Award 3rd prize for his master’s thesis on quantum computing. ‘A forward-looking thesis that solves problems in software engineering; not in the next decade, but beyond’, according to the jury.
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Students are programming with qubits
Students of the Leiden University master Computer Science are the first students in the world that have been educated in programming with a quantum computer. ‘With this system, it is finally possible to solve complex real-life problems of society.‘
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Infrastructure
An overview of our infrastructure at the SPP division:
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A radio view of dust-obscured star formation
Within the field of astronomy, understanding how galaxies grow and evolve from the Big Bang to the present day is a challenging and complex question.
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Suppressing a Sea of Starlight: Enabling technology for the direct imaging of exoplanets
Promotor: Christoph U. Keller, Co-promotores: Matthew A. Kenworthy, Frans Snik
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Bernard van Heck Wins Christiaan Huygens Prize 2016
Bernard van Heck has won the Christiaan Huygens Prize 2016 for his Leiden PhD research on electrical circuits for quantum computers. On behalf of the KNAW, the Dutch minister of Education, Culture and Science awards this prize annually to a researcher who has made an innovative contribution to scien…
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How cool is LEGO®? Leiden physicists use it for ice cold research
Tjerk Oosterkamp's group is conducting what is perhaps the coldest research in the world. The researchers have cooled a sensor to below 2 millikelvin - almost as cold as absolute zero. This allows them to make extremely sensitive measurements. PhD candidate Jaimy Plugge helped build the setup: ‘We are…
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Deciphering fermionic matter: from holography to field theory
Promotor: K.E. Schalm, Co-promotor: S.S. Lee
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Quantum machine learning
PhD defence
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Perfect for designing new molecules
Even a small quantum computer should be able to simulate exactly the properties and behaviour of new molecules. This would take chemistry to an entirely new level. Better solar panels, more powerful batteries, saving lots of energy in the chemical industry: the applications have the potential to transform…
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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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NWO Projectruimte for physicists Schalm and Zaanen
NWO has awarded a €392k Projectruimte grant to physicists Koenraad Schalm and Jan Zaanen to study ‘strange metals’. These materials are alleged to follow the bizarre laws of quantum mechanics even at everyday length scales.
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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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Laboratory studies of Water Ice in Space
Astronomical observations of cold regions in the universe show a rich inventory of ices. Part of these ices may end up on planets like our own, but in that journey they will be exposed to considerable amounts of radiation.
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Experimental optical imaging during pancreatic cancer interventions
PhD defence
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Delegation from Leiden University forges new links in Brazil
A delegation from Leiden University is visiting Brazil from 14 to 18 March. The first day of the visit was spent with scientists in São Paolo.
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Bernhard Brandl
Science
brandl@strw.leidenuniv.nl | +31 71 527 5830
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Michel Orrit wins Physica Prize 2016
Michel Orrit was awarded the Physica prize 2016 for his groundbreaking work on single molecule spectroscopy.
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Huub de Groot
Science
groot_h@chem.leidenuniv.nl | +31 71 527 4539
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Robert Smit receives his PhD with distinction. ‘I am happy to be back in the lab’
An all-optical transistor, a molecule-sized sensor and a new kind of single-photon source for quantum communication. All dreamed applications of fundamental physics that are one step closer thanks to Robert Smit. On 12 June, he defended his PhD thesis with distinction.
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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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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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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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Programme structure
The programme guarantees a thorough experience on the frontlines of physics research AND data science. It focuses on research areas where these fields overlap and in the process provides practical training of communicative and computer skills.
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Applications of AdS/CFT to strongly correlated matter: from numerics to experiments
What physics controls the properties of quantum matter, such as how electrons flow inside high-temperature superconductors? This question has captivated the physics community and industry for decades, in part due to the great technological potential such materials have, but also because they have resisted…
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Applications of quantum annealing in combinatorial optimization
PhD defence
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Quantum information theory - When quantum mechanics and the mathematics of information meet
Inaugural lecture