Roel Van Beeumen
- Research Scientist, Computational Research Division, Berkeley Lab, June 2019 - present.
- Postdoctoral Fellow, Computational Research Division, Berkeley Lab, September 2016 - May 2019.
- Postdoctoral Researcher, Department of Computer Science, KU Leuven, May 2015 - August 2016.
- PhD Researcher, Department of Computer Science, KU Leuven, October 2011 - April 2015.
- (Nonlinear) Eigenvalue Problems
- Numerical Linear Algebra
- Model Order Reduction
- Numerical Software
- Quantum Circuit Synthesis
- Doctor of Engineering Science (PhD): Computer Science
2011-2015, KU Leuven, Belgium.
- Master of Arts in Archaeology
2010-2011, KU Leuven, Belgium.
- Master of Engineering: Mathematical Engineering
2008-2010, KU Leuven, Belgium.
- Bachelor of Archaeology
2006-2010, KU Leuven, Belgium.
- Bachelor of Engineering: Mechanical Engineering
2005-2008, KU Leuven, Belgium.
- D. Camps, E. Kökcü, L. Bassman, W.A. de Jong, A.F. Kemper, R. Van Beeumen
"An algebraic quantum circuit compression algorithm for Hamiltonian simulation", 2021
- E. Kökcü, D. Camps, L. Bassman, J.K. Freericks, W.A. de Jong, R. Van Beeumen, A.F. Kemper
"Algebraic compression of quantum circuits for Hamiltonian evolution", 2021
- L. Bassman, R. Van Beeumen, E. Younis, E. Smith, C. Iancu, W.A. de Jong
"Constant-depth circuits for dynamic simulations of materials on quantum computers", 2021
- R. Van Beeumen, L. Periša, D. Kressner, C. Yang
"A flexible power method for solving infinite dimensional tensor eigenvalue problems", 2021
- R. Van Beeumen, K.Z. Ibrahim, G.D. Kahanamoku–Meyer, N.Y. Yao, C. Yang
"Enhancing scalability of a matrix-free eigensolver for studying many-body localization", 2020
For a complete list see here.
- QCLAB: object-oriented MATLAB toolbox for creating and representing quantum circuits.
- QCLAB++: object-oriented, fully templated C++ package for creating and representing quantum circuits.
- Fast Free Fermion Compiler (F3C): MATLAB toolbox for compiling time-evolution quantum circuits of spin Hamiltonians that can be mapped to free fermions.
- Fast Free Fermion Compiler (F3C++): C++ package for compiling time-evolution quantum circuits of spin Hamiltonians that can be mapped to free fermions.
M. G. Amankwah, D. Camps, E. W. Bethel, R. Van Beeumen, T. Perciano, "Quantum pixel representations and compression for N-dimensional images", Nature Scientific Reports, May 11, 2022, 12:7712, doi: 10.1038/s41598-022-11024-y
Daan Camps, Roel Van Beeumen, "Approximate quantum circuit synthesis using block encodings", PHYSICAL REVIEW A, November 11, 2020, 102, doi: 10.1103/PhysRevA.102.052411
One of the challenges in quantum computing is the synthesis of unitary operators into quantum circuits with polylogarithmic gate complexity. Exact synthesis of generic unitaries requires an exponential number of gates in general. We propose a novel approximate quantum circuit synthesis technique by relaxing the unitary constraints and interchanging them for ancilla qubits via block encodings. This approach combines smaller block encodings, which are easier to synthesize, into quantum circuits for larger operators. Due to the use of block encodings, our technique is not limited to unitary operators and can be applied for the synthesis of arbitrary operators. We show that operators which can be approximated by a canonical polyadic expression with a polylogarithmic number of terms can be synthesized with polylogarithmic gate complexity with respect to the matrix dimension.