I am interested in modelling, simulating, learning and controlling quantum systems with applications in quantum technologies, often related to spin dynamics. A particular interesting aspect of this is to learn physical laws of a system to enable to control it. Applications are focused on quantum spin networks, spintronics, magnetic resonance imaging and spectroscopy, and chemical synthesis.
E. Jonckheere, S. Schirmer, F. Langbein. Cover Image – International Journal of Robust and Nonlinear Control 28(6) 2018. [DOI:10.1002/rnc.4085]
Sean O’Neil, Edmond Jonckheere, Sophie Schirmer, Frank Langbein. Sensitivity and Robustness of Quantum Spin-1/2 Rings to Parameter Uncertainty. Proc. IEEE 56th Annual Conference on Decision and Control (CDC), Melbourne, VIC, pp. 6137-6142, 2017. [DOI:10.1109/CDC.2017.8264584] [arXiv:1708.09649] [PDF]
S Schirmer, F Langbein, C Jenkins, M Chandler. Design of novel MRI pulse sequences for GABA quantification using optimal control. In: 4th Int Symp on MRS of GABA, 2017.
C Jenkins, M Chandler, F Langbein, S Schirmer. Modelling, Optimization and QA for Magnetic Resonance Spectroscopy. All Wales Medical Physics and Engineering Summer Meeting, short talk and poster, 2017. [PDF]
M Chandler, F Langbein, C Jenkins, S Schirmer. Quantum Control for Magnetic Resonance Spectroscopy. All Wales Medical Physics and Engineering Summer Meeting, poster, 2017. [PDF]
B. Thorpe, Sophie Schirmer, Karol Kalna, Frank Langbein. Monte Carlo simulation of Spin Transport and Recovery in a 25 nm gate length InGaAs Field Effect Transistor. In: European Materials Resdarch Society 2017 Fall Meeting, Symposium F: Spintronics in semiconductors, 2D materials and topological insulators, F.FP.7, 2017. [WWW]
B. Thorpe, K. Kalna, F. C. Langbein, S. G. Schirmer. Spin Recovery in the 25nm Gate Length InGaAs Field Effect Transistor. In: Proc. Int. Workshop on Computational Nanotechnology, pp. 168-169, Windermere, UK, 6-9 June, 2017. [Abstract] [Poster] [WWW]
E. A. Jonckheere, S. G. Schirmer, F.C. Langbein. Structured Singular Value Analysis for Spintronics network Information Transfer Control. IEEE Trans Automatic Control, 62(12):6568-6574, 2017. [DOI:10.1109/TAC.2017.2714623][arxiv:1706.03247][PDF]
Sophie Schirmer, Frank Langbein, Edmond Jonckheere. Control of Quantum Spin Devices, feedback control laws and hidden feedback. Principles and Applications of Control in Quantum Systems, 11th Workshop, PRACQSYS 2017.
E. Jonckheere, S. G. Schirmer, F.C. Langbein. Jonckheere-Terpstra test for nonclassical error versus log-sensitivity relationship of quantum spin network controllers. Int J Robust and Nonlinear Control, 28(6):2383-2403, 2018. [DOI:10.1002/rnc.4022] [arXiv:1612.02784] [PDF]
B. Thorpe, K. Kalna, F.C. Langbein, S.G. Schirmer. Monte Carlo Simulations of Spin Transport in Nanoscale InGaAs Field Effect Transistors. J Applied Physics, 122, 223903, 2017. [DOI:10.1063/1.4994148] [arXiv:1610.04114] [PDF]
S. G. Schirmer, E. Jonckheere, F. C. Langbein. Design of Feedback Control Laws for Information Transfer in Spintronics Networks. IEEE Trans Automatic Control, 63(8):2523-2536, 2018. [DOI:10.1109/TAC.2017.2777187] [arXiv:1607.05294] [PDF]