804 search results for “quantum matter” in the Public website
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Quantum computation with Majorana zero modes in superconducting circuits
Promotor: C.W.J. Beenakker, Co-Promotor: A.R. Akhmerov
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Computational speedups and learning separations in quantum machine learning
This thesis investigates the contribution of quantum computers to machine learning, a field called Quantum Machine Learning. Quantum Machine Learning promises innovative perspectives and methods for solving complex problems in machine learning, leveraging the unique capabilities of quantum computers…
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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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Signatures of Majorana zero-modes in nanowires, quantum spin Hall edges, and quantum dots
Promotor: C.W.J. Beenakker, Co-promotor: M.T. Wimmer
- Jordi Tura Group (Applied Quantum Algorithms)
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NExt ApplicationS of Quantum Computing (NEASQC)
The NEASQC project brings together academic experts and industrial end-users to investigate and develop a new breed of Quantum-enabled applications that can take advantage of NISQ (Noise Intermediate-Scale Quantum) systems in the near future. NEASQC is use-case driven, addressing practical problems…
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Julia Cramer Group - Quantum and Society
The research group ‘Quantum and Society’ explores the boundary between quantum technology and science communication.
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EQUALITY - Efficient QUantum ALgorithms for IndusTrY
Born in Europe roughly 100 years ago, quantum physics brought forth a veritable technological revolution through semiconductors, lasers, fibre optics, and many other technologies that are today ubiquitous in our lives. Now, during the second quantum revolution, Europe can take the lead once more in…
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Seeking the boundaries of quantum mechanics
Bouwmeester
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Research in Physics, Classical/Quantum Information (MSc)
This master’s programme combines Physics with Data Science. You will learn how physics has its own tricks to deal with big data and how techniques from machine learning and deep learning can be applied to classical and quantum data. The first focus of attention is on classical data, including data mining,…
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Lahabi Lab - Quantum Materials and Devices
Kaveh Lahabi's lab explores the exotic physics of quantum materials, whose underlying physics seems to have more in common with elementary particles and black holes, than ordinary metals and semiconductors.
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Michiel de Dood Lab - Quantum Detection
Our group explores the larger domain of quantum measurement. In particular we investigate two themes that are closely connected: The detection of specially prepared quantum states of light and understanding and characterizing quantum photon detectors.
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Wolfgang Löffler Lab - Solid State and High Dimensional Quantum Optics
Advancing the understanding of the interaction of light and matter on the single-quantum level is important for near-future quantum technologies but also to answer fundamental questions.
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Nuclear Quantum Effects in Solid Water
Ice, the solid state of water, plays an important role on our planet as well as the entire universe.Despite the fact that an individual water molecule has a very simple structure, its chemical bonding in the solid phase can be surprisingly complex.
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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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Evert van Nieuwenburg
Science
e.p.l.van.nieuwenburg@liacs.leidenuniv.nl | +31 71 527 5523
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Cavity quantum electrodynamics with rare-earth ions in solids
Promotor: Prof.dr. D. Bouwmeester, Co-Promotor: M.J.A. de Dood
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Artifical intelligence gets a boost from quantum computing
Machine learning - on classical computers- has made great progress in the past five years. Computer translation of speech and text is just one example. In Leiden, some researchers expect that machine learning, empowered by quantum systems, even if they only contain a few dozen qubits, can lead to a…
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Quantum critical metals at vanishing fermion flavor number
Quantum critical metals at vanishing fermion flavor number.
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Advances in computational methods for Quantum Field Theory calculations
In this work we describe three methods to improve the performance of Quantum Field Theory calculations.
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Arend-Jan Quist
Science
a.quist@liacs.leidenuniv.nl | +31 71 527 2727
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Two-Prover Bit-Commitments: Classical, Quantum and Non-Signaling
This thesis considers multi-prover commitment schemes whose security is based on restrictions on the communication between the provers.
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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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Stable single molecules for quantum optics and all-optical switches
Promotor: Prof.dr. M.A.G.J. Orrit
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Soft condensed matter
What are the mysteries behind soft condensed matter?
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Felix Frohnert
Science
f.frohnert@liacs.leidenuniv.nl | +31 71 527 2727
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On quantum transport in flat-band materials
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.
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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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Sense Jan van der Molen Lab - Physics of Quantum Materials
In our lab, we investigate the physics and material properties of low-dimensional systems.
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Size effects in microstructured superconductors and quantum materials
We find ourselves in an era of transition, not just towards a more computing- and data-driven society but also away from unsustainable fossil fuels as an energy source.
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Towards relevant quantum computers
Can we use quantum computers in a way that is also relevant to society? With the help of a 2-million-euro NWA grant, Leiden University will work with partners such as Surf, Google and Volkswagen to demonstrate that quantum computers are also of value outside the lab.
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New spinoff company to solve major roadblock in the quantum revolution
Physicist Kaveh Lahabi’s research on quantum materials led to the launch of a new company: QuantaMap. With his colleagues, he developed a sensor that will improve the production of quantum computer chips. ‘It turns out that what I need for my fundamental physics research is also very useful for the…
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Leiden quantum technology research very successful in funding call
No less than six Leiden projects received a grant for quantum research from the national growth programme Quantum Delta NL and the NWO. After all, in order to boost quantum technology not only industry is needed, but also science. Research towards new sensors, faster algorithms and quantum materials,…
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Reedijk Symposium 2024: Quantum Dynamics of the reaction of hydrogen on metal surfaces
Lecture
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Computational aspects of class group actions and applications to post-quantum cryptography
Most of current public-key cryptography is considered insecure against attacks from sufficiently powerful quantum computers. Post-quantum cryptography studies methods to secure information resistant against such attacks. One proposal is isogeny-based cryptography, which bases its security on computational…
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Cum laude physicist Tom O’Brien to research quantum chemistry by quantum computers
With defending his thesis ‘Applications of topology to Weyl semimetals and quantum computing’, the Leiden theoretical physicist Tom O'Brien has gained the rare 'cum laude' qualification. The freshly minted PhD has started a five year research programme on quantum algorithms for quantum chemistry, funded…
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Nurbolat Kenbayev
Science
n.kenbayev@liacs.leidenuniv.nl | +31 71 527 2727
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Interview Richard Gill about quantum experiment
In the weekly magazine “Mare” from Leiden University, an interview with the Leiden statistics prof. dr. Richard Gill has been published recently about his contribution to the Delfts quantum-experiment.
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Carlo Beenakker
Science
beenakker@lorentz.leidenuniv.nl | +31 71 527 5532
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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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Breakthrough in uncrackable quantum encryption
An important discovery makes it possible to communicate complex information among multiple people without the message being cracked. The communication can also relate to complex information.
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Quantum dynamics of H2 on metal surfaces: researching the role of surface atoms
This research focuses on the (Quantum) Dynamics (QD) of the reactive scattering of H2 from metal surfaces.
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Upper Limit Found for Quantum World
The small quantum world and our world of perception obey different laws of nature. Leiden physicists search for the border between both worlds. In an article published soon in Physical Review Letters they set an upper limit.
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Holographic Duality in Condensed Matter Physics
The physics of black holes appears to be as far removed from the physics of electrons in metals as it can be.
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Light on the quantum computer
Physicist Martin van Exter works with light at nanoscale, at the forefront of nanocomputer research. But as Director of Education he also has a vision for physics teaching. Inaugural lecture 18 November.
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615 million euros for quantum research
Quantum Delta NL, a research programme in which Leiden University participates, has been awarded 615 million euros from the National Growth Fund to help develop the Netherlands into a top player in quantum technology. This has been announced at the presentation of the honoured proposals in The Hague…
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The Netherlands as an international centre for quantum technology
State secretary Mona Keijzer received the National Agenda on Quantum Technology from Robbert Dijkgraaf on 16 September. With this agenda, Dutch knowledge institutes and high-tech companies identify what is needed to maintain and strengthen the Dutch pioneering role in this area. Researchers from Leiden…
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The search for a ‘quantum advantage’
Proving a quantum computer to be quicker than a normal one is one step closer. After a breakthrough in speeding up classical algorithms, researchers Vedran Dunjko and Casper Gyurik showed that only one quantum algorithm could beat its classical counterpart. They discuss their discovery in Quanta Mag…
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Gold Matters
Gold Matters: Sustainability Transformations in Artisanal and Small-scale Gold Mining: A Multi-Actor and Trans-Regional Perspective.This project explores whether a transformative approach towards sustainability can arise in Artisanal and Smallscale Gold Mining (ASGM).
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Major Expansion Leiden Quantum Computing
The 18.8 million euro NWO Zwaartekracht grant for quantum software which Amsterdam, Delft and Leiden landed collectively, means for Leiden University among others the appointment of two new permanent scientific staff members, who will each form their own research group, divided among Computer Science,…