586 search results for “quantum matter” in the Public website
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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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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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Save the date! MAKING MATTERS Symposium 2020: Collective Material Practices in Critical Times
Join us at the second edition of the Making Matters symposium, which will take place on Friday 20 and Saturday 21 November 2020 at Het Nieuwe Instituut in Rotterdam and online.
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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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Towards Optical Detection of a Single Electron
Single-molecule spectroscopy has become a powerful method for using organic fluorescent molecules in numerous applications.
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Strings and AdS/CFT at finite density
Promotor: Prof.dr. J. Zaanen, A. Parnachev
- Leiden Institute of Physics
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Contact
Do you have any questions about the master’s programme Research in Physics: Classical/Quantum Information? Please contact us.
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About the programme
The specialisation consists of 120 European Credit Transfer System (EC) points and includes mandatory courses and electives (60 EC) and two research projects (60 EC).
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Chemical bond versus electromagnetic waves
Vibrating carbon monoxide molecules adsorbed at the surface of a salt crystal stop moving after a few milliseconds. Scientists now discovered this is dominantly due to the emission of electromagnetic waves. The role of the chemical bond at the surface thereby appears to be less important than previously…
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Guest lecture by Ernst Worrell on "Material Matter: Connecting Energy and Material Efficiency"
On Tuesday 10 March 2015 - 10h Ernst Worrell, professor at the University of Utrecht with a chair on
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LION Science Day
Every year, the Leiden Institute of Physics (LION) organises the Science Day. The goal is to highlight the newest research at LION, to socialise, and to welcome first year master students and new PhD candidates to our institute.
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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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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.
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Dirk Bouwmeester and Corinne Hofman receive NWO Spinoza Prize
On 9 September, in the presence of King Willem Alexander, Secretary of State Sander Dekker presented the Spinoza Prize to four researchers, including two researchers from Leiden: archaeologist Corinne Hofman and physicist Dirk Bouwmeester. In the Nieuwe Kerk in The Hague, they unveiled their plans for…
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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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Application procedure
The application procedure is broken down into three parts.
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Successful conference Kirchheiner Chair 'Government and citizens: A matter of trust'
On 1 September, the conference of the Kirchheiner Chair ‘Government and citizens: A matter of trust’ took place. In a packed hall in the beautiful Old Observatory of Leiden University, under the inspiring leadership of Willemien den Ouden, a debate was held on the role of the Dutch National Ombudsman,…
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Towards chemically accurate simulation of molecule-surface reactions
This perspective addresses four challenges facing theorists whose aim is to make quantitatively accurate predictions for reactions of molecules on metal surfaces, and suggests ways of meeting these challenges, focusing on dissociative chemisorption reactions of H2, N2, and CH4.
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Jet Bussemaker: ‘Health care is a social matter, not just a medical one’
Why are we unable to address health-care inequality? This was the topic of the inaugural speech of Professor Jet Bussemaker on Friday 15 February 2019. She analysed why current policy does not suffice when it comes to protecting vulnerable groups and fighting inequality. She proposed an agenda that…
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Black lives matter: ‘Why the American protests have resonated in the Netherlands’
The death of George Floyd at the hands of the police may have sparked the Black Lives Matter protests in the United States and here in the Netherlands, but they are about more than that alone. We asked Karwan Fatah-Black, a historian who specialises in the Dutch colonial history, for his analysis. ‘We…
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Livestream: Sean Carroll gives Ehrenfest Colloquium
On Wednesday September 26th, theoretical physicist Sean Carroll will give an Ehrenfest colloquium. It is part of a lecture series that has been running since 1912 and was founded by physicist Paul Ehrenfest.
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Black lives matter: ‘Racism takes different forms but it’s a world issue’
It all started with demonstrations protesting about the death of George Floyd from police brutality in Minneapolis, but the Black Lives Matter protest is spreading like wildfire across the whole of the US. Every day, thousands of people are taking to the streets. We asked American Studies expert Sara…
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Light Weighed: On the Statistics and Systematics of Weak Gravitational Lensing
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.
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Plan B for particle physics: finding long lived particles at CERN
This thesis discusses the discovery potential of Intensity Frontier experiments.
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Synthetic model microswimmers near walls
Synthetic microswimmers take an important place within the interdisciplinary field of active soft matter.
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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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Awards and Grants 2022
An overview of awards and prizes granted to our staff and students in 2022, as well as special appointments at Leiden University and other institutions.
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Master Projects
The following master research projects are currently open in the Bouwmeester group.
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Alumna Natacha Harlequin: ‘When it really matters, I’m a lion’
She stands out for the moderate tone she takes in discussions on Dutch talk shows. Without judgement you can have an open conversation, criminal lawyer Natacha Harlequin learned in her student days in Leiden. ‘What I personally think of the alleged act doesn’t matter so much.’
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educating and doing research together, you can discover things that really matter.
Bringing young, enthusiastic and driven academics from different disciplines together, that’s the goal of the Young Academy Leiden (YAL). As a new member, Assistant professor Jan van Rijn is excited to look at AI from different perspective. ‘I want to bring my expertise together with different point…
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Secure Multiparty Computation and Secret Sharing
The first book ever on information-theoretically secure multiparty computation
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Algorithms
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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Admission requirements
To be eligible for Physics and Classical/Quantum Information at Leiden University, you must meet the following admission requirements.
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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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Dutch Theoretical Physics reviewed as excellent
The Dutch Research School for Theoretical Physics (DRSTP) has received excellent ratings from an independent international committee. The DRSTP is a school for PhD training which has grown out of a collaboration between the theoretical physics departments at six Dutch universities—including Leiden—and…
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Hunting for the fastest stars in the Milky Way
The high velocity tail of the total velocity distribution of stars provides essential insight into fundamental properties of the Galaxy.
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History is a matter of a longing for rifles and flat screen TVs
History can be found in utensils and in interviews with ordinary citizens. ‘With the reconstruction of everyday life, an anthropological approach works better,’ thinks historian Jan-Bart Gewald. Inaugural lecture on 6 June.
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Cosmologists propose new way to form primordial black holes
What is dark matter? How do supermassive black holes form? ‘Primordial’ black holes might hold the answer to these long-standing questions. Leiden and Chinese cosmologists have identified a new way in which these hypothetical objects could be produced just after the Big Bang. Publication in Physical…
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Superlattices in van der Waals materials: A Low-Energy Electron Microscopy study
n this PhD thesis, the recombination of different atomic lattices in stacked 2D materials such as twisted bilayer graphene is studied. Using the different possibilities of Low-Energy Electron Microscopy (LEEM), the domain forming between the two atomic layers with small differences is studied.
- Program in English
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Education highlights 2023
From educational adventures in the tropics, students building software for real customers, to bacteria that degrade plastics. Scroll through our highlights on educational innovation and the achievements of our students.
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Dissociative chemisorption on transition metal surfaces
The dissociative chemisorption of a molecule on a transition metal surface represents a rate-limiting step in many heterogeneously catalyzed processes, whereby most chemicals are made. In spite of the importance of this reaction, an accurate first principles approach to modeling it does not yet exist.…
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Awards and Grants 2017
An overview of awards and prizes granted to our staff and students in 2017, as well as special appointments and royal distinctions.
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Multiple star systems: how they got here and why it matters
Disk formation around stars is an important factor in determining whether one or multiple stars evolve. But the big picture of star formation is still far from complete, says PhD researcher Nadia Murillo.
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LTP Lecture "Philosophy of quantum theory: Why all the options are puzzling"
Lecture