Hugo Strand
Hugo Strand Befattning: Universitetslektor Organisation: Institutionen för naturvetenskap och teknikE-post: aHVnby5zdHJhbmQ7b3J1LnNl
Telefon: 019 303372
Rum: T2202
Forskningsämne
Om Hugo Strand
Beräkningsfysiker (fil.doktor) med en passion för numeriska algoritmer, mjukvaruutveckling och högprestandaberäkningar.
Undervisning
- Introduktion till MATLAB programmering (https://github.com/HugoStrand/matlab-intro)
- Differentialekvationer
- Numeriska Metoder för Differentialekvationer
- Modellering and Numerisk Simulering
Forskning
Mitt forskningsintresse är kvantmekaniska mångpartikelsystem i och bortom jämvikt samt utveckling av numeriska metoder för deras simulering på klassiska datorer, med applikationer inom kondenserade materiens fysik, kvantkemi och kalla atomer.
Tillhör den excellenta forskargruppen vid Örebro University affilierad med the Wallenberg Initiative Materials Science for Sustainability (WISE) https://wise-materials.org/
Mjukvara
- QInchworm.jl A quasi Monte Carlo inchworm impurity solver for multi-orbital fermionic models (https://github.com/krivenko/QInchworm.jl)
- Toolbox for Research on Interacting Quantum Systems (TRIQS) (https://github.com/TRIQS/triqs)
- TPRF: the Two-Particle Response Function tool box for TRIQS (https://github.com/TRIQS/tprf)
- pydlr: Imaginary time calculations using the Discrete Lehmann Representation (DLR) (https://pypi.org/project/pydlr/)
- cppdlr: Imaginary time calculations using the discrete Lehmann representation (https://github.com/flatironinstitute/cppdlr)
- The Non-Equilibrium Systems Simulation (NESSi) package (https://github.com/nessi-cntr/nessi)
Forskningsprojekt
Pågående projekt
Forskargrupper
Publikationer
Artiklar i tidskrifter |
Doktorsavhandlingar |
Artiklar i tidskrifter
- Kiese, D. , Strand, H. U. R. , Chen, K. , Wentzell, N. , Parcollet, O. & Kaye, J. (2025). Discrete Lehmann representation of three-point functions. Physical Review B, 111 (3). [BibTeX]
- Kaye, J. , Strand, H. U. R. & Wentzell, N. (2024). cppdlr: Imaginary time calculations using the discrete Lehmann representation. Journal of Open Source Software, 9 (100). [BibTeX]
- Kaye, J. , Huang, Z. , Strand, H. U. R. & Golež, D. (2024). Decomposing Imaginary-Time Feynman Diagrams Using Separable Basis Functions: Anderson Impurity Model Strong-Coupling Expansion. Physical Review X, 14 (3). [BibTeX]
- van Loon, E. G. C. P. & Strand, H. U. R. (2024). Dual Bethe-Salpeter equation for the multiorbital lattice susceptibility within dynamical mean-field theory. Physical Review B, 109 (15). [BibTeX]
- Strand, H. U. R. , Kleinhenz, J. & Krivenko, I. (2024). Inchworm quasi Monte Carlo for quantum impurities. Physical Review B, 110 (12). [BibTeX]
- Strand, H. U. R. , Verdozzi, C. & Bonitz, M. (2024). Progress in Non-equilibrium Green's Functions VIII (PNGF VIII). Physica status solidi. B, Basic research, 261 (9). [BibTeX]
- Kaye, J. & Strand, H. U. R. (2023). A fast time domain solver for the equilibrium Dyson equation. Advances in Computational Mathematics, 49 (4). [BibTeX]
- Suzuki, H. , Wang, L. , Bertinshaw, J. , Strand, H. U. R. , Käser, S. , Krautloher, M. , Yang, Z. , Wentzell, N. & et al. (2023). Distinct spin and orbital dynamics in Sr2RuO4. Nature Communications, 14 (1). [BibTeX]
- van Loon, E. G. C. P. & Strand, H. U. R. (2023). Larmor precession in strongly correlated itinerant electron systems. Communications Physics, 6 (1). [BibTeX]
- Dong, X. , Gull, E. & Strand, H. (2022). Excitations and spectra from equilibrium real-time Green?s functions. Physical Review B, 106 (12). [BibTeX]
- Käser, S. , Strand, H. U. R. , Wentzell, N. , Georges, A. , Parcollet, O. & Hansmann, P. (2022). Interorbital singlet pairing in Sr2RuO4: A Hund's superconductor. Physical Review B, 105 (15). [BibTeX]
- Kaye, J. , Chen, K. & Strand, H. U. R. (2022). libdlr: Efficient imaginary time calculations using the discrete Lehmann representation. Computer Physics Communications, 280. [BibTeX]
- Dong, X. , Zgid, D. , Gull, E. & Strand, H. (2020). Legendre-spectral Dyson equation solver with super-exponential convergence. Journal of Chemical Physics, 152 (13). [BibTeX]
- Schüler, M. , Golez, D. , Murakami, Y. , Bittner, N. , Herrmann, A. , Strand, H. , Werner, P. & Eckstein, M. (2020). NESSi: The Non-Equilibrium Systems Simulation package. Computer Physics Communications, 257. [BibTeX]
- Ardizzone, I. , Zingl, M. , Teyssier, J. , Strand, H. , Peil, O. , Fowlie, J. , Georgescu, A. B. , Catalano, S. & et al. (2020). Optical properties of LaNiO3 films tuned from compressive to tensile strain. Physical Review B, 102 (15). [BibTeX]
- Kugler, F. B. , Zingl, M. , Strand, H. , Lee, S. B. , von Delft, J. & Georges, A. (2020). Strongly Correlated Materials from a Numerical Renormalization Group Perspective: How the Fermi-Liquid State of Sr2RuO4 Emerges. Physical Review Letters, 124 (1). [BibTeX]
- Sayyad, S. , Žitko, R. , Strand, H. , Werner, P. & Golež, D. (2019). Comparative study of nonequilibrium insulator-to-metal transitions in electron-phonon systems. Physical Review B, 99 (4). [BibTeX]
- Tamai, A. , Zingl, M. , Rozbicki, E. , Cappelli, E. , Riccò, S. , de la Torre, A. , McKeown Walker, S. , Bruno, F. & et al. (2019). High-Resolution Photoemission on Sr2RuO4 Reveals Correlation-Enhanced Effective Spin-Orbit Coupling and Dominantly Local Self-Energies. Physical Review X, 9 (2). [BibTeX]
- Strand, H. , Zingl, M. , Wentzell, N. , Parcollet, O. & Georges, A. (2019). Magnetic response of Sr2RuO4: quasi-local spin fluctuations due to Hund’s coupling. Physical Review B. Condensed Matter and Materials Physics, 100 (12). [BibTeX]
- Bittner, N. , Golež, D. , Strand, H. , Eckstein, M. & Werner, P. (2018). Coupled charge and spin dynamics in a photo-excited Mott insulator. Physical Review B, 97 (23). [BibTeX]
- Werner, P. , Strand, H. , Hoshino, S. , Murakami, Y. & Eckstein, M. (2018). Enhanced pairing susceptibility in a photo-doped two-orbital Hubbard model. Physical Review B. Condensed Matter and Materials Physics, 97 (16). [BibTeX]
- Hügel, D. , Strand, H. & Pollet, L. (2018). Self-energy functional theory with symmetry breaking for disordered lattice bosons. Quantum Science and Technology, 3 (3). [BibTeX]
- Li, J. , Strand, H. , Werner, P. & Eckstein, M. (2018). Theory of photoinduced ultrafast switching to a spin-orbital ordered hidden phase. Nature Communications, 9. [BibTeX]
- Ligges, M. , Avigo, I. , Golež, D. , Strand, H. , Stojchevska, L. , Kalläne, M. , Zhou, P. , Rossnagel, K. & et al. (2018). Ultrafast doublon dynamics in photo-excited 1T-TaS2. Physical Review Letters, 120 (16). [BibTeX]
- Hügel, D. , Strand, H. , Werner, P. & Pollet, L. (2017). Anisotropic Harper-Hofstadter-Mott model: Competition between condensation and magnetic fields. Physical Review B, 96 (5). [BibTeX]
- Strand, H. , Golež, D. , Eckstein, M. & Werner, P. (2017). Hund's coupling driven photocarrier relaxation in the two-band Mott insulator. Physical Review B, 96 (16). [BibTeX]
- Golež, D. , Boehnke, L. , Strand, H. , Eckstein, M. & Werner, P. (2017). Nonequilibrium GW+EDMFT: Antiscreening and inverted populations from nonlocal correlations. Physical Review Letters, 118 (24). [BibTeX]
- Werner, P. , Strand, H. , Hoshino, S. & Eckstein, M. (2017). Ultrafast switching of composite order in A(3)C(60). Physical Review B, 95 (19). [BibTeX]
- Hügel, D. , Werner, P. , Pollet, L. & Strand, H. (2016). Bosonic self-energy functional theory. Physical Review B, 94 (19). [BibTeX]
- Strand, H. , Eckstein, M. & Werner, P. (2015). Beyond the Hubbard bands in strongly correlated lattice bosons. Physical Review A. Atomic, Molecular, and Optical Physics, 92 (6). [BibTeX]
- Strand, H. , Eckstein, M. & Werner, P. (2015). Nonequilibrium Dynamical Mean-Field Theory for Bosonic Lattice Models. Physical Review X, 5 (1). [BibTeX]
- Lanatà, N. , Strand, H. , Yao, Y. & Kotliar, G. (2014). Principle of maximum entanglement entropy and local physics of strongly correlated materials. Physical Review Letters, 113 (3). [BibTeX]
- Strand, H. (2014). Valence-skipping and negative-U in the d-band from repulsive local Coulomb interaction. Physical Review B, 90 (15). [BibTeX]
- Lanatà, N. , Strand, H. , Giovannetti, G. , Hellsing, B. , De'Medici, L. & Capone, M. (2013). Orbital Selectivity in Hund's metals: The Iron Chalcogenides. Physical Review B. Condensed Matter and Materials Physics, 87 (4). [BibTeX]
- Granath, M. , Sabashvili, A. , Strand, H. & Östlund, S. (2012). Discretized thermal Green’s functions. Annalen der Physik, 524 (3-4), 147-152. [BibTeX]
- Granath, M. & Strand, H. (2012). Distributional exact diagonalization formalism for quantum impurity models. Physical Review B, 86 (11). [BibTeX]
- Lanatà, N. , Strand, H. , Dai, X. & Hellsing, B. (2012). Efficient implementation of the Gutzwiller variational method. Physical Review B, 85 (3). [BibTeX]
- Lanatà, N. & Strand, H. (2012). Time-Dependent and Steady-State Gutzwiller approach for nonequilibrium transport in nanostructures. Physical Review B. Condensed Matter and Materials Physics, 86 (11). [BibTeX]
- Strand, H. , Sabashvili, A. , Granath, M. , Hellsing, B. & Östlund, S. (2011). Dynamical mean field theory phase-space extension and critical properties of the finite temperature Mott transition. Physical Review B, 83 (20). [BibTeX]
Doktorsavhandlingar
- Strand, H. (2013). Correlated materials: models and methods. (Doctoral dissertation). Göteborg: Department of Physics, University of Gothenburg. [BibTeX]