====== Program ======

Our workshop in Heidelberg will be from Monday morning the 23rd of September 2024 to Friday the 27th at lunch time. The program includes alternating theory sessions with lectures and hands-on tutorials. We expect participants to arrive on Sunday evening (or Monday morning early) and leave on Friday.

We will add links to tutorials and powerpoint presentations in the week before the workshop.



^        \\ <color #E4E4E4>------------------</color>     ^ Sunday 22-9-2024 \\ <color #E4E4E4>---------------------------</color> ^ Monday 23-9-2024 \\ <color #E4E4E4>---------------------------------</color>  ^ Tuesday 24-9-2024 \\ <color #E4E4E4>---------------------------------</color>  ^ Wednesday 25-9-2022 \\ <color #E4E4E4>---------------------------------</color>  ^ Thursday 26-9-2024 \\ <color #E4E4E4>---------------------------------</color>  ^ Friday 27-9-2024 \\ <color #E4E4E4>---------------------------------</color>  ^
| 9:00 - 10:30 | ::: |<color #000080>**Lecture F. de Groot **</color> \\ Introduction to core level spectroscopy and theoretical models.  \\ **Powerpoints** \\ {{ :workshop:heidelberg:september_2024:frank_de_groot_part_1.pptx | X-ray absorption spectroscopy and multiplet calculations}} \\  |<color #000080>**Lecture F. de Groot**</color> \\ Introduction to core level spectroscopy and theoretical models, Ligand field theory and multiplet charge transfer.  \\ **Powerpoints** \\ {{ :workshop:heidelberg:september_2024:frank_de_groot_part_2.pptx | X-ray absorption spectroscopy and charge transfer multiplet calculations}} \\ **Codes** \\ [[https://anorg.chem.uu.nl/CTM4XAS/|CTM4 XAS, DOC and RIXS]] \\  |<color #000080>**Lecture A. Juhin **</color> \\ Density functional theory and K-edges \\ **Powerpoints** \\ {{ :workshop:heidelberg:september_2024:juhin_dft-kedge2024.pdf | Density functional theory for K-edges }} \\ |<color #000080>**Lecture E. Elnaggar **</color> \\ Polarization and dichroism \\ **Powerpoints** \\ {{ :workshop:heidelberg:october_2022:hebatalla_elnaggar_x-ray_dichroism_.pptx | X-ray dichroism}}  \\ |<color #000080>**Lecture M. Retegan**</color> \\ Calculations using Crispy, a graphical interface  \\ **Codes** \\ [[https://www.esrf.fr/computing/scientific/crispy/index.html|Crispy, a graphical interface]] \\ {{ :workshop:heidelberg:september_2024:crispy_python.zip | Python notebooks running Crispy }} \\ **Powerpoints** \\ {{ :workshop:heidelberg:september_2024:retegan_crispy_presentation.pptx | Crispy, a graphical interface }} \\  |
|10:30 - 11:00 | ::: |  <color #008000>**Coffee**</color>  |  <color #008000>**Coffee**</color>  |  <color #008000>**Coffee**</color>  |  <color #008000>**Coffee**</color>  |  <color #008000>**Coffee**</color>  |
|11:00 - 12:30 | ::: |<color #800000>**Hands-on tutorials**</color> \\ Introduction to Quanty, a many-body script language. (Orbitals, Slater-determinants, many-particle eigenstates, configuration interaction, restricted active space, Green’s functions, Self energy)  \\ **Background literature**  \\ [[https://www.lua.org/manual/5.2/| Lua Reference Manual ]] \\ **Powerpoints** \\ {{ :workshop:heidelberg:october_2022:why_spectoscopy_on_quantum_materials_and_quanty.pptx | Why spectroscopy on correlated quantum materials }}  \\ {{ :workshop:heidelberg:october_2022:haverkort_intro_many_body_physics.pptx | Introduction to many body physics }} \\ {{ :workshop:heidelberg:october_2022:haverkort_coulomb_repulsion.pptx | Introduction to Coulomb repulsion and Slater integrals }} \\ {{ :workshop:heidelberg:october_2022:haverkort_intro_spectrosocpy.pptx | Spectroscopy and Green's functions }} \\ **Tutorials** \\ {{ :workshop:heidelberg:october_2022:tutorial_monday_morning.zip | tutorials introduction to many body physics and atomic multiplets using quanty }} \\ |<color #800000>**Hands-on tutorials**</color> \\ Crystal field theory, Ligand field theory and Anderson impurity models for many different spectroscopy techniques (XAS, $L_{23}$ and $K$-edge, Fluorescence yield $L_{23}M_{45}$ and $L_{23}M_{1}$, RIXS core valence and core core excitations, nIXS valence and core excitations, PES, corePES, IPES and XES) and methods to analyse the models and spectra (Energy level diagrams, Density matrix plots, temperature, conductivity tensors to capture polarization)    \\ **Tutorials** \\ --- \\ |<color #800000>**Hands-on tutorials**</color> \\ Density functional theory calculations: bands, Density of states, Wannier functions and derived model Hamiltonians \\ **Documentation** \\ --- \\ **Tutorials** \\ ---  \\  |<color #800000>**Hands-on tutorials**</color> \\ Polarisation dependence and tensor formulation of XAS, RIXS and NIXS  \\ **Background literature** \\ --- \\ **Tutorials** \\ --- \\ |<color #800000>**Hands-on tutorials**</color> \\ Calculations using Crispy, a graphical user interface \\ |
|12:30 - 13:30 | ::: |  <color #008000>**Lunch**</color>  |  <color #008000>**Lunch**</color>  |  <color #008000>**Lunch**</color>  |  <color #008000>**Lunch**</color>  |  <color #008000>**Lunch**</color>  |
|13:30 - 15:00 | ::: |<color #000080>**Lecture M.-A. Arrio**</color> \\ Crystal-field theory and multiplets \\ **Background literature** \\ Introduction to ligand field theory by Carl J. Ballhausen \\ **Powerpoints ** \\ {{ :workshop:heidelberg:september_2024:arrio-crystal-field-heidelberg2024.pdf | Crystal field in multi-electron 3d ions. Marie-Anne Arrio. }}  \\ |<color #000080>**Lecture M. W. Haverkort**</color> \\ Anderson impurity models and Dynamical Mean-Field Theory \\ **Powerpoints** \\ -- \\  |<color #000080>**Lecture M. W. Haverkort **</color> \\ Ab initio many-body techniques \\ **Powerpoints** \\ -- \\ |<color #000080>**Lecture --- **</color> \\ Resonant inelastic x-ray scattering \\ **Powerpoints** \\ --- \\ |  **Departure**  |
|15:00 - 15:30 | ::: |  <color #008000>**Coffee**</color>  |  <color #008000>**Coffee**</color>  |  <color #008000>**Coffee**</color>  |  <color #008000>**Coffee**</color>  | ::: |
|15:30 - 17:00 | ::: |<color #800000>**Hands-on tutorials**</color> \\ Crystal-field theory: Ground-state calculations including Energy level diagram, finite temperature, magnetic susceptibility. Spectroscopy calculations including cPES, XAS, nIXS and RIXS (Tutorial continues on Tuesday.) \\ **Background literature** \\ [[physics_chemistry:point_groups| A list of important point groups and the crystal-field for different representations ]] \\ **Powerpoints** \\ {{ :workshop:heidelberg:october_2022:haverkort_crystalfield_expansion_renormalized_sphericalharmonics.pptx | Expansion of a potential on spherical Harmonics }}   \\ **Tutorials** \\ {{ :workshop:heidelberg:october_2022:tutorial_monday_afternoon.zip | tutorials introduction to crystal field theory }} \\ |<color #800000>**Hands-on tutorials**</color> \\ X-ray spectroscopy in the dynamical mean-field approximation (XAS, PES, RXD, NIXS, RIXS) \\ **Tutorials** \\ --- \\ |<color #800000>**Hands-on tutorials**</color> \\ From DFT to many-body model calculations  \\ **Tutorials** \\ --- \\ |<color #800000>**Hands-on tutorials**</color> \\ RIXS: Polarisation dependence, resonant energy dependence and dispersion of magnons. Effective operators, local cluster calculations and linear spin-wave theory.  \\ **Tutorials** \\ --- \\  | ::: |
|  |  **Arrival**  | | <color #800080>**Poster session**</color> \\ Time for the participants to present their own research. | | | ::: |
|18:00 - ... | | Free evening program | ::: | Free evening program | Free evening program | ::: |



===== Posters =====

Feel free to bring your poster on Monday morning and place it on one of the walls of our institute.


===== Table of contents =====
{{indexmenu>.#2|msort nsort}}