QDev Faculty

Charles Marcus

Charles Marcus

Charlie Marcus is a  Professor at the Niels Bohr Institute and Principal Investigator at Microsoft Quantum Lab Copenhagen. He is also a member of the Niels Bohr International Academy. Charlie was raised in Sonoma, California, and studied at Stanford (undergraduate) and Harvard University (PhD). Before coming to Copenhagen in 2011, he also taught Physics at Stanford and Harvard. His research interests have varied over the years, from neural networks as a graduate student to quantum chaos and mesoscopic physics, nanotubes, graphene, nanowires, and more recently quantum information and qubits. Much of his research is now focused on the realization of non-abelian excitations in solid state systems, including superconductor-semiconductor hybrid structures and fractional quantum Hall systems. Charlie lives with his wife and two children in Central Copenhagen.

Karsten Flensberg

Karsten Flensberg

Karsten Flensberg works in the research group Solid State Physics and is a co-founder of Center for Quantum Devices (QDev). He is the director of Qdev. Karsten Flensberg works with theoretical many-body and solid-state physics in relation to quantum mechanic effects on nanostructures and superconductors - especially in context of quantum information systems and electron transport in molecular transistors and quantum dots.

Jesper Nygård

Jesper Nygaard

My activities cover mainly carbon nanomaterials and semiconductor nano wires grown in-house. When turned into electronic devices they enable investigations and control of quantum phenomena, our core QDev activity. Progress relies on the ability to optimise the microstructure of materials and interfaces, thus we keep one foot in materials science. Interestingly, our devices can also be useful in biosensing,  molecular electronics and photovoltaics – we pursue some of these applications in the Nano-Science Center. My teaching covers quantum transport and solid state physics.

Jens Paaske

Jens Paaske

I work on theoretical many-body physics, with a strong emphasis on correlated electrons in solid state systems. This includes problems of quantum transport either in bulk materials or through low-dimensional nano-junctions such as wires, dots and single molecules. The intricate interplay between correlation, and non-equilibrium effects remains a central theme in my research, a good part of which is rooted in the experimental QDev activities.

Martin Leijnse

I am a theoretical condensed matter physicist primarily interested in nanoscale systems. On such small length scales, the physics is drastically different from what we know in our all-day life and is dominated by the laws of quantum mechanics.I investigate different ways of taking advantage of quantum mechanics to design for example electronic components with desirable properties.

 

Thomas Sand Jespersen

Thomas Sand Jespersen I am an associate professor working with experimental low temperature quantum transport at the Center for Quantum Devices. My research focuses on the physics of semiconductor nanowires couples to superconductors and on mesoscopic phenomena in strongly correlated electron systems emerging at the interfaces of complex oxide heterostructures.

 

Kasper Grove-Rasmussen

My research is focused on hybrid circuits formed by coupling superconductors to nanoscale quantum systems formed in e.g. carbon nanotubes and semiconductor nanowires. The interplay between various quantum phenominee leading to Majorana and Shiba states, and the property of the superconductor to provide spin-entangled electron pairs, make these systems ideal for utilising quantum mechanics. I am currently an Associate Professor.

Ferdinand Kuemmeth

My focus centers on practical quntum design and cryogenic electric manipulation and readout techniques. By choosing the material, geometry and boundary conditions, we create nanodevices with well/controlled, often surprising spin-electronic properties. Low-dimensional semiconductors such as nanowires and 2D electron gases challenge us to haness the role of spin-orbit coupling, type of confinement, and the interplay between conduction band, valence bands, and superconductivity.

Peter Krogstrup

Peter Krogstrup finished his PhD in physics in October of 2012, at the Niels Bohr Institute, University of Copenhagen. Today, he is working as a professor at QDev, as a part of the Microsoft Station Q project with a specific focus on growing nanowire crystals that not only can produce majorana particles, but also control them. His main research interests are the field between material science and quantum transport with an ambition to produce new materials for future quantum electronic applications. Currently, his focus is directed towards controlling the formation of heterostructure III-V/superconductor nanowires for topological superconductor devices.

Karl Petersson

I'm an experimental physicist working as a part of both the Niels Bohr Institute and Microsoft. My research explores new types of solid state qubit systems along with techniques for qubit readout and control to (hopefully) help enable practical quantum computers.

 

 

Anasua Chatterjee

Billede af Anasua ChatterjeeI work on small-scale quantum circuits, using high-frequency readout and control techniques to simulate and explore fundamental physical properties of matter. My research interests as an experimental physicist span the intertwined fields of fundamental condensed matter physics and quantum information. They include quantum simulation, superconductivity, light-matter interaction and spin qubit arrays. High-frequency techniques allow us to reach very short readout timescales, while machine learning algorithms open up new ways of exploring the properties of complex nanodevices.

 

Luca Galletti

Billede af Luca Galletti

I am an experimental condensed matter physicist. My area of expertise lies at the intersection between the physics of superconductors and of topological materials. My goal as a researcher is to attain novel quantum technology by leveraging electronic properties of materials in particular topological band structures and electron correlation. My current project is to develop platforms for quantum computing based on hybrid heterostructures entailing superconductors, magnetic materials, semiconducting nanowires and 2DEGs.

 

Michele Burrello

Billede af Michelle Burrello

The understanding of the topological properties of quantum matter has been a revolution in the theory of condensed matter and it is one of the most fascinating discoveries of the last decades. My main research interest is the study of topological phases of matter, their engineering and the possibility they offer for quantum computation. I am a theorist working on different quantum many-body systems ranging from ultracold atoms to topological superconductors. Despite their different nature, I like to search the common structures, which are at the core of their behavior.

 

Morten Kjaergaard

Billede af Morten Kjaergaard

My research is focused on the use of superconducting quantum bits as a platform to investigate quantum algorithms, quantum fault-tolerance and quantum verification and validation protocols.

Superconducting qubits are one of the few quantum computing modalities that support not only quantum device experiments but also quantum information experiments. We use them as a platform to study foundational questions related to quantum fault tolerance, generation and measurement of entanglement, efficient verification and validation protocols as well as small scale quantum algorithms and protocols.

 

Yu Liu

Billede af Yu Liu

I joined QDev in May 2017. My task is focusing on developing ferromagnetic hybrid material platforms and exploring various possibilities of material combination to serve the study of topological superconducting systems.

   

    

   

  

Juan Carlos Estrada Saldaña

Billede af Juan Carlos Estrada Saldana

Fantastic things happen at 30 mK (-273°C!). My experiments explore how single electrons are squeezed, paired, exchanged, dressed, and broken apart in semiconductor-superconductor (and sometimes ferromagnetic) nanowires at this temperature. 

 

 

   

 

Evert van Nieuwenburg

Billede af Evert van NieuwenburgMy research focuses on using machine learning to advance the state-of-the-art in condensed matter physics. Examples are the use of neural networks to predict physical properties of many-body systems, genetic algorithms for quantum error correction, and reinforcement learning for controlling experimental quantum systems. I contribute to the development of quantum games for outreach and education (quantumchess.net and quantumtictactoe.com), and I am an organizer for virtualscienceforum.org

 

 

 

Constantin Schrade

Billede af Constantin SchradeConstantin Schrade is an Assistant Professor at NBI working in theoretical condensed matter physics and quantum information science. His current interests comprise protected quantum computing with superconducting circuits, Majorana zero modes in topological superconductors, and correlated states in moiré materials