Jan Brandejs is a programmer working on applications of tensor network methods. He is a doctoral student of theoretical physics at Charles university in Prague. He focuses on generalizations of the DMRG method, especially the Tree tensor network method (T3NS) and the Tailored coupled cluster method (TCC). These projects are in cooperation with the Czech academy of sciences. There, he also contributed to the development of their Massively parallel DMRG implementation. Before his work for Wigner Research centre for Physics, he had an Erasmus internship in the group of Dr. Örs Legeza for four months.
He has experience from private IT projects. Aside from Prague, he studied at the McGill university in Montreal for one semester. In the past he worked on a student grant project implementing software for CERN particle detectors. Aside from quantum chemistry, he is interested in quantum information and quantum computing, which were also the topics of his past projects. In his free time, he volunteers as a teacher for kids from socially excluded groups.
J. Brabec, J. Brandejs, K. Kowalski, S. Xantheas, O. Legeza, L. Veis: Massively parallel quantum chemical density matrix renormalization group method; arXiv:2001.04890, accepted in Journal of Computational Chemistry, Nov 26, 2020.
J. Brandejs, L. Višňák, L. Veis, M. Máté, O. Legeza, J. Pittner: Towards DMRG-tailored coupled cluster method in the 4c-relativistic domain; J. Chem. Phys., vol. 152 (17), 2020.
J. Brandejs, L. Veis, S. Szalay, G. Barcza, J. Pittner, O. Legeza: Quantum information-based analysis of electron-deficient bonds; J. Chem. Phys., vol. 150, 2019, p. 204117
L. Veis, J. Brandejs, J. Pittner: Strongly correlated systems and the DMRG method in quantum chemistry; Chemické listy, vol. 10, 2018, p. 655-666