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Scalable Solvers Group
Scalable Solvers Group

Roel Van Beeumen

Roel Van Beeumen
Roel Van Beeumen
Research Scientist
Applied Mathematics and Computational Research Division
Phone: +1 (510) 486-5175
Web: http://www.roelvanbeeumen.be
Lawrence Berkeley National Laboratory
1 Cyclotron Road
Mailstop 50A-3111
Berkeley, California 94720 us

Positions

  • 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. 

Research Interests

  • (Nonlinear) Eigenvalue Problems
  • Numerical Linear Algebra
  • Model Order Reduction
  • Numerical Software
  • Quantum Computing

Education

  • 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.

Preprints

  • Y. Shen, D. Camps, S. Darbha, A. Szasz, K. Klymko, D.B. Williams-Young, N.M. Tubman, R. Van Beeumen
    "Estimating eigenenergies from quantum dynamics: A unified noise-resilient measurement-driven approach"
    arXiv:2306.01858
  • E. Kökcü, D. Camps, L. Bassman Oftelie, W.A. de Jong, R. Van Beeumen, A.F. Kemper
    "Algebraic compression of free fermionic quantum circuits: Particle creation, arbitrary lattices and controlled evolution"
    arXiv:2303.09538
  • R. Van Beeumen, D. Camps, N. Mehta
    "QCLAB++: Simulating quantum circuits on GPUs"
    arXiv:2303.00123
  • D. Camps, L. Lin, R. Van Beeumen, C. Yang
    "Explicit quantum circuits for block encodings of certain sparse matrices"
    arXiv:2203.10236

For a complete list see here.

Software

Journal Articles

Roel Van Beeumen, Lana Periša, Daniel Kressner, Chao Yang, "Solving a class of infinite‐dimensional tensor eigenvalue problems by translational invariant tensor ring approximations", Numerical Linear Algebra with Applications, July 24, 2024, 31:22573, doi: 10.1002/nla.2573

Jan Balewski, Mercy G Amankwah, Roel Van Beeumen, E Wes Bethel, Talita Perciano, Daan Camps, "Quantum-parallel vectorized data encodings and computations on trapped-ion and transmon QPUs", Journal, February 10, 2024, 14, doi: https://doi.org/10.1038/s41598-024-53720-x

Daan Camps, Lin Lin, Roel Van Beeumen, Chao Yang, "Explicit quantum circuits for block encodings of certain sparse matrices", SIAM Journal on Matrix Analysis and Applications, January 1, 2024, 45:801-827, doi: 10.1137/22M1484298

E Wes Bethel, Mercy G Amankwah, Jan Balewski, Roel Van Beeumen, Daan Camps,… more authors » "Quantum computing and visualization: A disruptive technological change ahead", Journal, November 6, 2023, 43, doi: https://doi.org/10.1109/MCG.2023.3316932

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

Roel Van Beeumen, Khaled Z. Ibrahim, Gregory D. Kahanamoku-Meyer, Norman Y. Yao, Chao Yang, "Enhancing Scalability of a Matrix-Free Eigensolver for Studying Many-Body Localization", The International Journal of High Performance Computing Applications, March 19, 2022, 36:307-319, doi: 10.1177/10943420211060365

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

Show Details

T. Hernandez, R. Van Beeumen, M. Caprio, C. Yang, "A greedy algorithm for computing eigenvalues of a symmetric matrix with localized eigenvectors", Numerical Linear Algebra and Applications, October 9, 2020, 28:e2341, doi: https://doi.org/10.1002/nla.2341

D. Camps, R. Van Beeumen, C. Yang, "Quantum Fourier Transform Revisited", Numerical Linear Algebra and Applications, September 15, 2020, 28:e2331, doi: https://doi.org/10.1002/nla.2331

Miroslav Urbanek, Daan Camps, Roel Van Beeumen, Wibe A. de Jong, "Chemistry on quantum computers with virtual quantum subspace expansion", Journal of Chemical Theory and Computation, 2020, 16:5425–5431, doi: 10.1021/acs.jctc.0c00447

B. Peng, R. Van Beeumen, D.B. Williams-Young, K. Kowalski, C. Yang, "Approximate Green’s function coupled cluster method employing effective dimension reduction", Journal of Chemical Theory and Computation, 2019, 15:3185-3196, doi: 10.1021/acs.jctc.9b00172

R. Van Beeumen, O. Marques, E.G. Ng, C. Yang, Z. Bai, L. Ge, O. Kononenko,… more authors » "Computing resonant modes of accelerator cavities by solving nonlinear eigenvalue problems via rational approximation", Journal of Computational Physics, 2018, 374:1031-1043, doi: 10.1016/j.jcp.2018.08.017

M. Papadopoulos, R. Van Beeumen, S. François, G. Degrande, G. Lombaert, "Modal characteristics of structures considering dynamic soil-structure interaction effects", Soil Dynamics and Earthquake Engineering, 2018, 105:114-118, doi: 10.1016/j.soildyn.2017.11.012

R. Van Beeumen, D.B. Williams-Young, J.M. Kasper, C. Yang, E.G. Ng, X. Li, "Model order reduction algorithm for estimating the absorption spectrum", Journal of Chemical Theory and Computation, 2017, 13:4950-4961, doi: 10.1021/acs.jctc.7b00402

K. Meerbergen, W. Michiels, R. Van Beeumen, E. Mengi, "Computation of pseudospectral abscissa for large-scale nonlinear eigenvalue problems", IMA Journal of Numerical Analysis, 2017, 37:1831-1863, doi: 10.1093/imanum/drw065

R. Van Beeumen, E. Jarlebring, W. Michiels, "A rank-exploiting infinite Arnoldi algorithm for nonlinear eigenvalue problems", Numerical Linear Algebra with Applications, 2016, 23:607-628, doi: 10.1002/nla.2043

R. Van Beeumen, K. Meerbergen, W. Michiels, "Compact rational Krylov methods for nonlinear eigenvalue problems", SIAM Journal on Matrix Analysis and Applications, 2015, 36:820-838, doi: 10.1137/140976698

R. Van Beeumen, W. Michiels, K. Meerbergen, "Linearization of Lagrange and Hermite interpolating matrix polynomials", IMA Journal of Numerical Analysis, 2015, 35:909-930, doi: 10.1093/imanum/dru019

S. Güttel, R. Van Beeumen, K. Meerbergen, W. Michiels, "NLEIGS: A class of fully rational Krylov methods for nonlinear eigenvalue problems", SIAM Journal on Scientific Computing, 2014, 36:A2842-A286, doi: 10.1137/130935045

W.G. Vandenberghe, M.V. Fischetti, R. Van Beeumen, K. Meerbergen, W. Michiels, C. Effenberger, "Determining bound states in a semiconductor device with contacts using a nonlinear eigenvalue solver", Journal of Computational Electronics, 2014, 13:753-762, doi: 10.1007/s10825-014-0597-5

D. Verhees, R. Van Beeumen, K. Meerbergen, N. Guglielmi, W. Michiels, "Fast algorithms for computing the distance to instability of nonlinear eigenvalue problems, with application to time-delay systems", International Journal of Dynamics and Control, 2014, 2:133-142, doi: 10.1007/s40435-014-0059-8

R. Van Beeumen, K. Meerbergen, W. Michiels, "A rational Krylov method based on Hermite interpolation for nonlinear eigenvalue problems", SIAM Journal on Scientific Computing, 2013, 35:A327-A350, doi: 10.1137/120877556

R. Van Beeumen, K. Van Nimmen, G. Lombaert, K. Meerbergen, "Model reduction for dynamical systems with quadratic output", International Journal for Numerical Methods in Engineering, 2012, 91:229-248, doi: 10.1002/nme.4255

Conference Papers

R. Van Beeumen, G. D. Kahanamoku-Meyer, N. Y. Yao and C. Yang, "A scalable matrix-free iterative eigensolver for studying many-body localization", HPCAsia2020: Proceedings of the International Conference on High Performance Computing in Asia-Pacific Region, ACM, January 7, 2020, 179-187, doi: 10.1145/3368474.3368497

Reports

R. Van Beeumen, L. Perisa, D. Kressner, C. Yang, "A Flexible Power Method for Solving Infinite Dimensional Tensor Eigenvalue Problems", January 30, 2021,

Last edited: 02/05/2024
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