Dr. Dennis Willsch

Senior Researcher

Areas of expertise

Quantum Computing, Quantum Annealing, Simulation of Quantum Computers, GPU Programming, HPC, Machine Learning

Contact

+49 2461/61-96982

+49 2461/61-6656

E-Mail

http://www.fz-juelich.de/ias/jsc/qip

Google Scholar

ResearchGate

Address

Forschungszentrum Jülich GmbH
Wilhelm-Johnen-Straße
52428 Jülich

Institute for Advanced Simulation (IAS)

Jülich Supercomputing Centre (JSC)

Building 16.3 / Room 340

You can find us here

Biography

Dennis Willsch was born in Cologne, Germany. He received his PhD degree in physics from RWTH Aachen University in 2020 for simulating the time evolution of transmon quantum computers on digital supercomputers. He is a senior researcher in the Quantum Information Processing group at Jülich Supercomputing Centre, Forschungszentrum Jülich. His current research interests include modeling quantum technology experiments, benchmarking existing quantum computers and quantum annealers, and simulating the time evolution of quantum information processors on supercomputers.

Lectures:

Quantum Computing: Concepts and Algorithms SS 25 (English)

Quantum Computing WS 24/25 (German)

Quantum Computing WS 23/24 (German)

Selected Talks:

Panel Discussion: Future of HPC, IHPCSS 2024, Youtube Link
Observation of Josephson Harmonics in Tunnel Junctions (45min), IBM Qiskit Seminar 2023, Youtube Link
Observation of Josephson Harmonics in Tunnel Junctions (15min), WACQT Workshop 2023, Youtube Link
Guided Quantum Walk (20min), INQA Conference 2023, Youtube Link
Applications on Quantum Annealers at FZJ (30min), INQA Conference 2022, Youtube Link
Applications on Quantum Annealers at JSC (45min), 4DQV Lecture Series 2021, Youtube Link
Benchmarking GPU Clusters with the Jülich Universal Quantum Computer Simulator (60min), GPU Tech Conference 2021, Youtube Link

Publications

Selected Publications:

Learning-Driven Annealing with Adaptive Hamiltonian Modification for Solving Large-Scale Problems on Quantum Devices, Sebastian Schulz, Dennis Willsch, and Kristel Michielsen, arXiv:2502.21246 (2024)
The State of Factoring on Quantum Computers, Dennis Willsch, Philipp Hanussek, Georg Hoever, Madita Willsch, Fengping Jin, Hans De Raedt, and Kristel Michielsen, arXiv:2410.14397 (2024)
Observation of Josephson Harmonics in Tunnel Junctions, Dennis Willsch, Dennis Rieger, Patrick Winkel, Madita Willsch, Christian Dickel, Jonas Krause, Yoichi Ando, Raphaël Lescanne, Zaki Leghtas, Nicholas T. Bronn, Pratiti Deb, Olivia Lanes, Zlatko K. Minev, Benedikt Dennig, Simon Geisert, Simon Günzler, Sören Ihssen, Patrick Paluch, Thomas Reisinger, Roudy Hanna, Jin Hee Bae, Peter Schüffelgen, Detlev Grützmacher, Luiza Buimaga-Iarinca, Cristian Morari, Wolfgang Wernsdorfer, David P. DiVincenzo, Kristel Michielsen, Gianluigi Catelani, and Ioan M. Pop, Nature Physics 20, 815 (2024)
Guided Quantum Walk, Sebastian Schulz, Dennis Willsch, and Kristel Michielsen, Phys. Rev. Research 6, 013312 (2024)
Large-Scale Simulation of Shor's Quantum Factoring Algorithm, Dennis Willsch, Madita Willsch, Fengping Jin, Hans De Raedt, and Kristel Michielsen, Mathematics 11, 4222 (2023)
Massively parallel quantum computer simulator, eleven years later, Hans De Raedt, Fengping Jin, Dennis Willsch, Madita Willsch, Naoki Yoshioka, Nobuyasu Ito, Shengjun Yuan, and Kristel Michielsen, Comput. Phys. Commun. 237, 47 (2019)
Support vector machines on the D-Wave quantum annealer, Dennis Willsch, Madita Willsch, Hans De Raedt, and Kristel Michielsen, Comput. Phys. Commun. 248, 107006 (2020)
Benchmarking the quantum approximate optimization algorithm, Madita Willsch, Dennis Willsch, Fengping Jin, Hans De Raedt, and Kristel Michielsen, Quantum Inf. Process. 19, 197 (2020)
Supercomputer simulations of transmon quantum computers (PhD Thesis), Dennis Willsch, Kristel Michielsen (advisor), and David P. DiVincenzo (advisor), RWTH Aachen University (2020)

Complete publication list: See Google Scholar or JuSER

Last Modified: 24.04.2025