719 search results for “quantum computer” in the Public website

The quantum computer
The worldwide race to the quantum computer is in full swing. This computer can take on computing tasks that we can only dream of today, such as finding proteins that can be used as medicines in seconds flat. Leiden physicists have discovered how the Majorana particle can be used as a building block…

Methods to simulate fermions on quantum computers with hardware limitations
This thesis is a collection of theoretical works aiming at adjusting quantum algorithms to the hardware of quantum computers.

Applications of topology to Weyl semimetals and quantum computing
This thesis covers various applications of topology in condensed matter physics and quantum information.

Quantum computation with Majorana zero modes in superconducting circuits
Promotor: C.W.J. Beenakker, CoPromotor: A.R. Akhmerov

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…

Algorithms for quantum software
Top scientists of three Dutch universities are working on software and systems for quantum computers. Researchers of the Leiden Institute of Advanced Computer Science (LIACS) and the Leiden Institute of Physics (LION) are developing new algorithms to make those super computers work. The coming years,…

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.

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,…

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.

Quantum Matter and Optics
Research groups in the Quantum Matter & Optics programme investigate electronic properties of matter and lightmatter interactions with emphasis on quantum information.

New practice tool for quantum computer coding: OpenFermion
In a global effort, quantum computers are rapidly being developed. In the meantime, researchers have to learn how to write code for these devices, which are fundamentally different from conventional computers. A collaboration of scientists led by Google, and including physicists from Leiden and Delft,…

NWA funding for communications research on quantum computing
Leiden physicist Julia Cramer receives 50 thousand euros in funding for 'Let's talk about quantum', a research project on communication about quantum computing. A project for high school students by education expert Henk Buisman is also included in the NEWA ELSA funding.

New quantum computer design to predict molecule properties
The standard approach to build a quantum computer with Majoranas as building blocks is to convert them into qubits. However, a promising application of quantum computing—quantum chemistry—would require these qubits to be converted again into socalled fermions. Physicists from Leiden and Delft suggest…

Consortium puts Quantum Computer in the cloud
The quantum computer is on its way, but is society ready for it? Quantum computers have a reputation of being difficult to grasp because of their complexity. This limits society’s ability to envision future applications creating a gap between society and quantum computers. A consortium of 14 knowledge…

A new building block for the quantum computer
The race to build the first quantum computer is still ongoing, but Morten Bakker has made big step forward in that process with qubits. A qubit is a unit of quantum information that can be produced in large numbers on chips. Qubits capable of exchanging photons (light particles) could be used in the…
 Quantum Information

Quantum computing pioneer Seth Lloyd is the 2019 Lorentz Professor
American physicist and quantum computing pioneer Seth Lloyd is the 65th Lorentz professor. He will deliver the Ehrenfest lecture on 5 June, and several more lectures on quantum computing on 11, 18 and 25 June.

Quantum Matter and Optics
The quantum nature of matter and light has grown into a broad and fruitful research field for theorists and experimentalists alike. It combines foundational research with toward applications, the most well known of which is the quantum computer.

LIACS part of European consortium to boost industrial quantum computing
The Leiden Institute of Advanced Computer Science (LIACS) is a proud member of the NExt ApplicationS of Quantum Computing (NEASQC) consortium, which recently received an ERC H2020 grant to stimulate the stateoftheart in industrial quantum computing. LIACS contributes research and development of new…

‘The first quantum computer will fill a sports hall’
The worldwide race to the quantum computer is in full swing. This computer can bring about a breakthrough in discovering medicines and new materials. Leiden researchers, together with the TU Delft, are taking part in the race. There is now a dossier online about their work.

Shell works with Leiden and VU researchers on quantum computer algorithms for chemistry
Shell cooperates with theoretical physicists and chemists of Leiden University to research how quantum computer algorithms can help simulate complex molecules.
 Quantum Optics

Thinking about the quantum internet
Quantum computers deserve their own quantum internet. This is a network that dispatches information not in the form of bits  ones and zeros  but rather as qubits, just like in the quantum computer itself. In the view of Dirk Bouwmeester, a professor in Leiden’s Quantum Matter & Optics research group,…

Carlo Beenakker
Science
 Jordi Tura Group (Applied Quantum Algorithms)

Hydrodynamics and the quantum butterfly effect in Black Holes and large N quantum field theories
Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?

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 hightech companies identify what is needed to maintain and strengthen the Dutch pioneering role in this area. Researchers from Leiden…

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…

Expansions of quantum group invariants
In my research, we developed a method to distinguish knots. A knot is a mathematical depiction of the everyday knot that occurs in ropes and cords.

Cavity quantum electrodynamics with quantum dots in microcavities
Promotor: Prof.dr. D. Bouwmeester, Copromotor: M.P. van Exter

Cryptography from quantum uncertainty in the presence of quantum side information
Promotor: Ronald Cramer, Copromotor: Serge Fehr

Dirk Bouwmeester
Science

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.

On periodically driven quantum systems
Promotor: C. W. J. Beenakker, Copromotor: J. K. Asboth

Quantum local asymptotic normality and other questions of quantum statistics
Promotor: R. Gill, Copromotor: P. Massart

Bouwmeester Lab (Quantum Optics and Quantum Information)
The research program of the QO group has three leading themes: Optical Physics, Quantum Optics, and PhotonMatter Interactions. We work mostly at the boundaries between these themes with entanglement as a bridging and binding agent.

Quantum Emitters
We study the dynamics of individual emitters in micro cavities.

Cramer Group (Quantum and Society Lab)
The research group ‘Quantum and Society’ explores the boundary between quantum technology and science communication.

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…

Developing quantum software with a grant of 18.8 million euros
The first larger quantum computers will soon be available. These computers need new software. Researchers at Leiden University have been awarded a Gravitation grant to develop the necessary software. They will be collaborating with colleagues from other research institutions.

Secure Multiparty Computation and Secret Sharing
The first book ever on informationtheoretically secure multiparty computation

Quantum dot microcavity control of photon statistics
During my PhD research, I studied the photon statistics of light emitted by a microcavity that contains a single quantum dot (QD) on resonance.

Quantum to Classical
In Quantum mechanics, particles can be in multiple positions simultaneously. Yet, when a measurement is made, the particle is found only in one place. Technology has come to a point where we may design experiments that will tell us how.

Single Molecule Detected for Use in Quantum Network
Leiden physicists have managed to detect a single molecule called dibenzoterrylene in a new crystal, and found that it is a candidate component for a quantum network. Future quantum computers will need such a network to work together while maintaining their advantages. Publication in ChemPhysChem jo…

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.

1.3 million euros to catch quantum collapse
Leiden physicists Tjerk Oosterkamp and Dirk Bouwmeester have received a 1.3 million euro ScienceGroot grant from NWO to catch a mystery at the core of quantum mechanics, together with Amsterdam physicist Jasper van Wezel.

Allan Lab (Understanding Quantum Matter)
We are a dynamic research group at the Leiden Institute of Physics. Our aim is to explore and understand quantum materials, including strange metals, hightemperature superconductors, and quantum critical electron matter.

Artificial Intelligence learns faster with quantum technology
An international collaboration, including Leiden physicist and computer scientist Vedran Dunjko, showed that quantum technology can speedup the learning process of artificial intelligence (AI). To prove this, the physicists and computer scientists used a quantum processor for single photons. Their…

Signatures of Majorana zeromodes in nanowires, quantum spin Hall edges, and quantum dots
Promotor: C.W.J. Beenakker, Copromotor: M.T. Wimmer

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,…