Faculty, Students & Staff

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QDev Faculty

Brian Møller Andersen

Associate Professor

bma*nbi.ku.dk

+45 5046 8651

NBB, 01.3.F.074

I am a theoretical condensed matter physicist focused on emergent properties of quantum materials, arising from electron-electron correlations or disorder.

Anasua Chatterjee

Associate Professor

anasua.chatterjee*nbi.ku.dk

+45 7151 6503

HCØ Building 3-408

I work on small-scale quantum circuits, using high-frequency readout and control techniques to simulate and explore fundamental physical properties of matter.

Morten Holm Christensen

Assistant Professor

mchriste*nbi.ku.dk

NBB, 01.3.F.096

My research is about understanding how electronic correlations give rise to novel phenomena.

Karsten Flensberg

Professor

flensberg*nbi.ku.dk

+45 2513 2969

HCØ Bldg. 3-112/ NBB, 01.3.F.058

Karsten Flensberg works is theoretical condensed matter physics.

Thomas Sand Jespersen

Affiliate Professor

tsand*nbi.ku.dk

+45 2857 0164

HCØ Building 3-210

I am an associate professor working with experimental low temperature quantum transport at the Center for Quantum Devices.

Morten Kjaergaard

Associate Professor

mkjaergaard*nbi.ku.dk

HCØ Building 3-418

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.

Filip Krizek

Assistant Professor

krizek*nbi.ku.dk

My research focuses on the development and advanced characterization of novel material systems.

Ferdinand Kuemmeth

Professor

Ferdinand.kuemmeth*ur.de

+45 2116 2657

HCØ Building 3-406

My activities explore practical quantum 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 harness the role of spin-orbit coupling, type of confinement, and the interplay between conduction band, valence bands, and superconductivity. Interested? Come join us! For my CV in a nutshell, read on.

I am Professor in Experimental Condensed Matter Physics at the Niels Bohr Institute (NBI). Pioneering spin-orbit coupling in nanostructures, I obtained my PhD at Cornell University under guidance of Prof. Daniel C. Ralph in 2007. After postdoctoral research with Prof. Charles Marcus in Boston I served as Research Associate at Harvard University before I moved to University of Copenhagen to help build the Center for Quantum Devices, an excellence center established 2012-2023 by the National Danish Research Foundation. In 2016 I founded QDevil, a quantum electronics hardware company located in Copenhagen. As CTO, I leveraged support through the European Innovation Council (EiC) and the Innovation Fund Denmark (IFD) to mature the quickly growing company into an internationally trusted partner for quantum technology research labs around the world, both academic and industrial. My innovative approach to research and education at the intersection of fundamental condensed matter physics and applied quantum technologies was recognized in 2019 by the university’s SCIENCE business award. I also serve as Principal Scientist at Quantum Machines, which QDevil joined in 2022, becoming one of the largest high-tech companies that is entirely focused on quantum control. At the Niels Bohr Institute, I lead a research group on semiconducting and superconducting quantum devices, including quantum dots, spin qubits, superconducting resonators and encoded qubits. Since the foundation of the Center for Quantum Devices in 2012, I have steadily advanced the cutting edge of NBI’s research and educational capabilities, specifically in the areas of condensed matter quantum transport measurements and the development of solid-state qubits. My innovative low-temperature techniques have advanced quantum science around the world, recognized by the 2024 Technology Transfer Prize of the German Physical Society. My overarching goal is to understand and proliferate the interplay of semiconductors and superconductivity in low-dimensional systems, and harness the resulting spin-electronic properties for quantum information applications.

William Lawrie

Assistant Professor

william.lawrie*nbi.ku.dk

HCØ Building 3-408

I have a background in quantum dot physics in group IV host materials, with a particular emphasis on hole spin qubits in planar germanium quantum wells.

Martin Leijnse

Associate Professor

martin.leijnse*ftf.lth.se

I am a theoretical condensed matter physicist primarily interested in nanoscale systems.

Charles Marcus

Professor

marcus*nbi.ku.dk

+45 2034 1181

HCØ Building 3-116

Charlie Marcus is a Professor at NBI and heads the Center for Quantum Devices. He also taught Physics at Stanford University (92-99) and Harvard University (00-10).

Frederik Nathan

Assistant Professor

frederik.nathan*nbi.ku.dk

I am a theoretical condensed matter physicist studying how how interactions with the surrounding world, or “quantum noise,” affects a quantum system of interest.

Jesper Nygård

Professor

nygard*nbi.ku.dk

+45 2462 6120

HCØ Building 3-410

My activities cover mainly carbon nanomaterials and semiconductor nano wires grown in-house.

Jens Paaske

Associate Professor

paaske*nbi.ku.dk

+45 3532 0395

NBB, 01.3.F.066

I work on theoretical many-body physics, with a strong emphasis on correlated electrons in solid state systems.

Finn Berg Rasmussen

Emeritus

finnberg*fys.ku.dk

+45 3532 0417

Finn Berg Rasmussen, pensioned 2006. Conduction in metals and semimetals, thermodynamic and nuclear magnetic properties of Ag, Rh, and 3He.

Saulius Vaitiekėnas

Associate Professor

saulius*nbi.ku.dk

HCØ Building 3-118

I am an experimental condensed matter physicist primarily interested in novel phases in hybrid systems.

Postdocs and Research Scientists

	Fabrizio Berritta Post-doctoral Fellow fabrizio.berritta*nbi.ku.dk HCØ Building 3-408	I joined the Center for Quantum Devices in October 2020 as a PhD student supervised by Ferdinand Kuemmeth. Read more >>
	Florinda Viñas Boström Post-doctoral Fellow florinda.bostrom*nbi.ku.dk NBB, 01.3.F.092
	Lucas Casparis Senior Research Engineer lucas.casparis*nbi.ku.dk
	Jacob Hastrup Research Scientist jacob.hastrup*nbi.ku.dk HCØ Building 3-418	My research is at the intersection between quantum software and quantum hardware, Read more >> developing and implementing novel quantum algorithms and protocols on superconducting quantum processors.
	Joost van der Heijden Industrial Post-doctoral Fellow jvh*qdevil.com +45 2260 1820 HCØ Building 3-204	I joined QDev in October 2020 as an industrial postdoc, employed by QDevil. My research is focused on the readout of spin qubits and on-chip conditional operations.
	Svend Krøjer Møller Post-doctoral Fellow svend.moeller*nbi.ku.dk HCØ Building 3-412	I work with a few different things related to superconducting quantum processors: Read more >> Developing and executing efficient characterization and benchmarking protocols, assessing resources in quantum processing and guiding the development of novel qubits, couplers and qubit control/readout schemes.
	Kristian Knakkergaard Nielsen Post-doctoral Fellow kristian.knakkergaard*nbi.ku.dk NBB, 01.3.F.038	I study dynamics and pairing in doped spin lattices and sub-wavelength atomic arrays in the context of quantum simulation. Read more >> I am affiliated with the CMT and theoretical quantum optics groups.
	Colin Piquard Post-doctoral Fellow colin.piquard*nbi.ku.dk HCØ Building 3-408	My research, spanning my PhD in Paris and my postdoctoral work at QDev, focuses on analogue quantum simulations. Specifically, I design highly controlled and tunable quantum nanocircuit platforms that accurately replicate the physics of more complex, real-world systems. Read more >> At QDev, I investigate the coupling of high-kinetic-inductance superconducting resonators with quantum dot arrays. Since quantum dots behave like artificial atoms, an array of them effectively forms a molecule when the bosonic degrees of freedom of vibrational modes are incorporated via the resonators. This system provides a powerful platform for simulating single-molecule transistors, offering key insights into the fundamental physical and chemical laws at the single-molecule scale.
	Deepti Rana Post-doctoral Fellow deepti.rananbi.ku.dk HCØ Building 3-110*
	Joachim Sestoft Post-doctoral Fellow Joachim.Sestoft*nbi.ku.dk +45 2547 5103 HCØ Building 3-404	My research is focused on developing on-chip devices for neural computation and integrated sensing inspired by the brains of insects. Read more >> Specifically, I investigate how to couple photonic and electronic nanowires.
	Zhenhai Sun Post-doctoral Fellow zhenhai.sun*nbi.ku.dk +45 5268 3313 HCØ Building 3-412	After finishing my PhD in Morten's group, I chose to continue my research in the same group as a postdoc. Read more >> My work will be focused on developing and implementing fast readout techniques in superconducting qubits.
	Christopher William Warren Research Engineer christopher.warren*nbi.ku.dk HCØ Building 3-412	My research focuses on the design, measurement, and control of scaled superconducting quantum processors. Read more >> Superconducting qubits represent one of the most developed platforms for experimental work in quantum computing, quantum information, and pure quantum mechanics. This is due to their flexibility in designing the individual qubits and the types of couplings that can be achieved between them.

PhDs and Students

	Christine Wei Andersson PhD Candidate christine.andersson*nbi.ku.dk HCØ Building 3-112	As a PhD student at QDev, my research is related to studying supercurrents in Josephson junction arrays and broadening my knowledge as a quantum experimentalist.
	David Feldstein Bofill PhD Candidate david.bofill*nbi.ku.dk +34 673309315 HCØ Building 3-416	I joined Qdev as a PhD student to study novel architectures of super/semiconducting based quantum bits to pave the way towards protected qubits.
	Bertram Brovang PhD Candidate bertram.brovang*nbi.ku.dk HCØ Building 3-420	I started working as PhD student at QDev in January 2022 under the supervision of Ferdinand Kuemmeth. Read more >> My research is focused on developing superconducting resonators for coupling spin qubits and implementing small-scale analog quantum simulators.
	Thorbjørn Clausen Bachelor Student thorbjorn.clausen*nbi.ku.dk HCØ Building 3-321
	Tsung-Lin Chung PhD Candidate tsung-lin.chung*nbi.ku.dk HCØ Building 3-420	I joined QDev in October 2021 as a PhD student under the supervision of Ferdinand Kuemmeth. Read more >> My project is to establish chains of gate-voltage controlled quantum dots as an experimental platform for quantum simulation applications in chemistry.
	Hans Christiansen PhD Candidate hans.christiansen*nbi.ku.dk NBB, 01.3.F.034
	Harold Lim Co PhD Candidate harold.co*nbi.ku.dk HCØ Building 3-420	I started work at QDev in January 2024 as a PhD student under the supervision of Ferdinand Kuemmeth. Read more >> My research will focus on the experimental aspects of designing and operating novel spin qubit devices based on germanium heterostructures.
	Anders Dahl PhD Candidate kth943*alumni.ku.dk NBB, 01.3.F.088	I will work with Karsten Flensberg investigating (quasi-)protected superconducting qubits. Read more >> We will characterize how to make both single qubit and two qubit gates and analyze lifetimes T1 and T2. We will compare and look at different geometries in order to improve the protection of the qubit.
	Emma Fugl Bachelor Student psf728*nbi.ku.dk
	Rune Thinggaard Hansen PhD Candidate ruth*math.ku.dk HCØ Building 3-416	I started in October 2023 as a PhD split between QDev and Qmath (center for mathematics of quantum) supervised by Morten Kjaergaard and Albert Werner. Read more >> I work on calibration schemes for superconducting qubits in a quantum informational setting
	Cecilie Hermansen PhD Candidate Cecilie.hermansen*nbi.ku.dk NBB, 01.3.F.034	I am a PhD student with Jens Paaske working on theoretical modelling of small networks of quantum dots coupled to microwave resonators. Read more >> The goal is to investigate whether the electrodynamics of the resonators can emulate the nuclear motion in a molecule.
	Siri Stenstrup Hjermind Master Student ssh*math.ku.dk
	Leo Uhre Jacobsen Project Outside Course Scope lfn364*alumni.ku.dk HCØ Building 3-321
	Marcin Kepa Master Student marcin.kepa*nbi.ku.dk HCØ Building 3-321
	Lazar Lakic PhD Candidate lazar.lakic*nbi.ku.dk HCØ Building 3-206	I will fabricate and measure quantum-dot devices coupled to superconducting resonators. Read more >> I joined QDev in the summer 2020 and will start my bachelor project this fall in the spin-qubit group under supervision of Ferdinand Kuemmeth.
	Kristian Lindholmer Bachelor Student kristian.lindholmer*nbi.ku.dk
	Jürgen Luus PhD Candidate jyrgen.luus*nbi.ku.dk HCØ Building 3-206
	Magnus Rønne Lykkegaard PhD Candidate magnus.lykkegaard*nbi.ku.dk HCØ Building 3-108	I’ve joined QDev in February 2022 as a PhD student with supervision by Charles Marcus. Read more >> I’ll split my work into two overarching directions: Andreev billiards and multi-terminal Josephson junctions. Measuring the Andreev spectrum of these systems will reveal the interesting physics governed by the symmetries they possess.
	Albert Lars Sigurd Malmros PhD Candidate albert.malmros*nbi.ku.dk HCØ Building 3-321
	Gor Nahapetyan Master Student xzn779*alumni.ku.dk HCØ Building 3-321
	Malthe Asmus Marciniak Nielsen PhD Candidate malthe.asmus.nielsen*nbi.ku.dk HCØ Building 3-416
	Lara Liva Olsen Bachelor Student lara.olsen*nbi.ku.dk
	Amalie Terese Jiao Paulsen PhD Candidate amalie.paulsen*nbi.ku.dk HCØ Building 3-420	My thesis involves the design, simulation, fabrication and characterization of fluxonium (superconducting qubit) under the supervision of Morten Kjaergaard.
	Torbjørn Rasmussen PhD Candidate torbjoern.rasmussen*nbi.ku.dk HCØ Building 3-206	I joined Qdev for the first time when I started my bachelors project, I have since then come back for my masters project and now as a PhD student. Read more >> During my time here I have been working with various ways of using machine learning and algorithmic approaches for control and exploration of quantum devices, and I will be continuing within this framework during my PhD.
	Tobias Thornsen Røhling Master Student tobias.rohling*nbi.ku.dk HCØ Building 3-112	I am working on a master thesis about investigating transport in frustrated Josephson junction arrays in particular at the flat bands.
	Rasmus Schlosser PhD Candidate rasmus.schlosser*nbi.ku.dk HCØ Building 3-404
	Johann Bock Severin PhD Candidate johann.severin*nbi.ku.dk HCØ 3-416	I’m doing my PhD together with Jacob Hastrup and Morten Kjaergaard. Read more >> We will be working on setting up infrastructure to calibrate and run quantum algorithms on superconducting qubit systems.
	Ksenia Shagalov PhD Candidate ksenia.shagalov*nbi.ku.dk HCØ Building 3-416	I joined QDev in December 2023 as a PhD student under the supervision of Morten Kjaergaard. In my research, I focus on novel architectures of superconducting quantum devices
	Pawel Sidorczak PhD Candidate pawel.sidorczaknbi.ku.dk HCØ Building 3-404*	In April 2024, I started my PhD under the supervision of Professor Jesper Nygård. Read more >> I study the use of coupled quantum dots and superconducting resonators systems, as an analog quantum simulator platform. The project is carried out in collaboration with the groups of profs. Ferdinand Kuemmeth and Jens Paaske as part of the NNF SolidQ program.
	Shikhar Singh PhD Candidate shikhar.singh*nbi.ku.dk HCØ Building 3-416	I joined QDev as a PhD student from December 2023. I will be working on superconducting-semiconducting quantum devices with Morten Kjaergaard.
	Oliver Solow PhD Candidate oliver.solow*nbi.ku.dk NBB, 01.3.F.088	I'm a Phd student working with Karsten Flensberg on open quantum systems. Read more >> In particular, I am interested in the topological properties of open systems, where the extension to non-unitary dynamics leads to a rich topological classification. My goal is to use this classification to study realizable condensed matter systems.
	Yao Su PhD Candidate yaosu*nbi.ku.dk HCØ Building 3-206
	Zhenzhong Tang Master Student blf483*alumni.ku.dk HCØ Building 3-321
	Jonas Vinther PhD Candidate jonas.vinther*nbi.ku.dk NBB, 3rd floor
	Vasilis Vlachodimitropoulos PhD Candidate vasileios.vlachodimitropoulos* nbi.ku.dk +45 6089 7652 HCØ Building 3-420	I joined QDev as PhD student in March 2023. My work focuses on experimental efforts to realize analogs of topologically protected states of matter. Read more >> Such systems are expected to exhibit inherent protection to external perturbations, which is one of the main sources of noise in current state-of-the-art qubits. Apart from their potential application as a noise resilient form of quantum computation, realizing these states is fascinating also from a fundamental physics perspective as they are predicted to have exotic statistics, unlike any other state of matter known so far.
	Haowei Wang Master Student vsz645*alumni.ku.dk HCØ Building 3-321
	Casper Wied PhD Candidate casper.wied*nbi.ku.dk HCØ Building 3-420	I work with condensed matter physics, quantum physics and programming in relation to quantum computing in Morten Kjaergaard's group.
	Yaqi Zhang Master Student bgl932*alumni.ku.dk NBB, 2nd floor
	Junting Zhao PhD Candidate junting.zhao*nbi.ku.dk HCØ Building 3-112	I joined QDev as a PhD student. I am interested in experimental condensed matter physics. Read more >> More specifically, my work focuses on the superconductor-semiconductor-ferromagnetic insulator hybrid system

Technical staff

	Martin Bjergfelt Lab Manager martin.bjergfelt*nbi.ku.dk +45 2116 1365 HCØ Building 3-216 Matthias'research is in the area of Quantum Information Theory. It is his aim to improve our understanding of the ultimate limits of computation and communication given by quantum theory. Concrete research results include a proposal for a perfect quantum wire and a new method for the detection of entanglement. Matthias Christandl received his PhD from the University of Cambridge in 2006. He then became a Thomas Nevile Research Fellow at Magdalene College Cambridge. In 2008, he joined the faculty of the University of Munich as a Juniorprofessor; since 2010 he has been assistant professor at ETH Zurich. He moved to the University of Copenhagen in April 2014.	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.
	Subhadip Das Lab Coordinator subhadip.das*nbi.ku.dk +45 9184 2480 HCØ Building 3-408
	Charalampos (Harry) Lampadaris Process Specialist Lampadaris*nbi.ku.dk +45 7144 3764 HCØ Building 3-212
	Yu Liu Quantum Materials Engineer yu.liu*nbi.ku.dk +45 3533 5502 HCØ Building 3-318
	Nader Payami Chemical Process Engineer nap*nbi.ku.dk +45 3532 0450 HCØ Building 3-214

Administrative staff

	Leon Bojčić Student Assistant leon.bojcic*nbi.ku.dk HCØ Building 3-312
	Vibe Aaroee Thyboe Drostgaard Administrative Coordinator vibe*nbi.ku.dk HCØ Building 3-312
	Lena Rørbæk Jacobsen Program Coordinator lena.jacobsen*nbi.ku.dk +45 2917 6481 HCØ Building 3-312
	Kasper Bang Rasmussen Office Trainee kbr*science.ku.dk HCØ Building 3-312

Visitors

	Sherwan Abdi Visiting Master Student wkj747*nbi.ku.dk HCØ Building 3-108
	Fabio Ansaloni Industrial Post-doctoral Fellow fan*qdevil.com HCØ Building 3-204
	Serwan Asaad Product Manager asaad*nbi.ku.dk +45 2569 0916 HCØ Building 3-204
	Oladunjoye Aina Awoga Guest Researcher oladunjoye.awoga*ftf.lth.se NBB, 2nd Floor	My research focus is in theoretical condensed matter physics with keen interest in quantum materials, especially topological superconductors and other exotic quantum systems. Read more >> I apply different theoretical methods to study the properties of these materials.My research focus is in theoretical condensed matter physics with keen interest in quantum materials, especially topological superconductors and other exotic quantum systems. I apply different theoretical methods to study the properties of these materials.
	Virgil V. Baran Guest Researcher virgil.v.baran*unibuc.ro NBB, 01.3.F.038	I am a theorist looking to expand my experience on quantum many-body effects (e.g. the appearance of four-body collective states) from nuclear structure towards condensed matter systems like topological superconductors or ultracold atoms.
	Pierre-Armand Barbieri Visiting Master Student pierre-armand.barbieri*etu.unistra.fr HCØ Building 3-321
	Alton James Holscher Visiting Master Student std970*alumni.ku.dk HCØ Building 3-110
	Oopa Srija Kurapati Visiting Master Student srija.kurapati*nbi.ku.dk HCØ Building 3-204
	Claire Kvande Visiting PhD claire.kvande*nbi.ku.dk HCØ Building 3-112
	Dot Belin Pio Visiting Master Student s194104*student.dtu.dk HCØ Building 3-321	My research project aims to implement the sudden net zero (SNZ) two-qubit gate in a superconducting qubit platform, through simulation and experimental demonstration. Read more >> The SNZ gate is a scheme to implement a controlled-Z (CZ) gate operating at the highest speed limit, harnessing the transverse coupling between a computational state and a non-computational state of flux tunable transmon qubits.
	Astrid Tranum Rømer Assistant Professor ar*nbi.ku.dk +45 3533 7621 NBB, 2nd Floor	My research focuses on the understanding of unconventional superconductivity, in particular the microscopic mechanism driving superconductivity. Read more >> I am interested in new material properties arising from exotic electronic pairing states.
	Marcus Vestergaard Spørring Visiting Master Student s233459*student.dtu.dk HCØ Building 3-321
	Carl Viktor Svensson Guest Researcher viktor.svensson*ftf.lth.se NBB, 2nd Floor	I am a theorist working on topological properties in quantum mechanical systems. My research focuses on how interactions affect Majorana zero modes and the associated protocols for quantum computing.
	Olav Fredrik Syljuåsen Visiting Professor o.f.syljuasen*fys.uio.no NBB, 2nd Floor
	Athanasios Tsintzis Post-doctoral Fellow NBB, 2nd Floor	I am a theoretical condensed matter physicist focusing on transport calculations in nanostructures proximitized by superconductors. Read more >> I am currently studying a quantum dot system that is predicted to harbor Majorana bound states.
	Narendra Vanjarapu Visiting Master Student narendra.vanjarapu*nbi.ku.dk HCØ Building 3-108