Events

Jun
18
Thu
Spectroscopy Lectures :: theory and codes @ CECAM-HQ-EPFL
Jun 18 – Jun 19 all-day

The CECAM School on: “Theoretical Spectroscopy Lectures: theory and codes” reaches the 6th edition and takes place from 18th to 22th of May, 2015 at the CECAM-HQ-EPFL, Lausanne, Switzerland.

Electronic excitations are probed by experimental techniques such as optical absorption, EELS and photo-emission (direct or inverse). From the theory point of view, excitations and excited state properties are out of the reach of density-functional theory (DFT), which is a ground-state theory. In the last twenty years other ab-initio theories and frameworks, which are able to describe electronic excitations and spectroscopy, have become more and more used: time-dependent density-functional theory (TDDFT) and many-body perturbation theory (MBPT) or Green’s function theory (GW approximation and Bethe-Salpeter equation BSE). In fact, computational solutions and codes have been developed in order to implement these theories and to provide tools to calculate excited state  properties.The present school focuses on these points, covering theoretical, practical, and also numerical aspects of TDDFT and MBPT, and codes implementing them (ABINIT, DP, EXC).

The presentation of the theory will be followed by practical classes and hands-on  tutorials. At the end of the school, students will have sufficient working knowledge to  pursue their projects at their home institution. The participants are expected to have a fair knowledge of DFT prior to the school (see Ref. 1, given in the school’s website) and to be familiar with one plane-wave pseudopotential based software.
Indeed, although at the beginning of the school, we will make sure that the DFT level of all participants is enough in this respect and provide the needed complementary  information and training, the purpose of the school is to go beyond DFT, with hands-on exercices based on plane-wave implementations.

The deadline for application is on 15 April 2015, but giving the limited number of places (around 25) many applications will be considered even before the deadline. Especially student candidates coming from outside EU are encouraged to register soon: an answer to them will be given as soon as possible for VISA and traveling purposes.

In order to apply for the school, please go to: http://www.cecam.org/workshop-1136.html

May
7
Mon
CECAM School: Theoretical Solid State Chemistry: theory, modelling, and simulation @ CECAM HQ
May 7 – May 11 all-day
CECAM School: Theoretical Solid State Chemistry: theory, modelling, and simulation @ CECAM HQ | Lausanne | Vaud | Switzerland

Although computer simulation of the electronic structure and properties of solids began decades ago, only recently the solid state methodologies have become sufficiently reliable that their application has resulted in an increasingly important impact on solid state chemistry and physics. , While a large number of course and tutorials already exists, they are mainly focused on audiences with strong background on solid state physics, and usually devoted to some particular electronic structure code. Far more unusual are the courses designed to teach the solid-state techniques to chemists, thus contributing to eliminate the cultural barriers that still exist between both groups. This school is primarily targeted to PhD students and post docs who are interested or are starting to learning about the application theory methods and techniques to the study of the physics and chemistry of the solid state.

The level of this tutorial corresponds to master or doctorate students in areas of physics and chemistry. After two initial days where the fundamentals of theory of the treatment of the electronic structure of solids will be presented to the students, the remaining of the tutorial will be devoted to the examination of specific and hot areas like characterization of chemical bonding in solids and relationship to macroscopic properties, structure and reactivity at solid surfaces, including layered systems and highly correlated oxides, and magnetic properties. The afternoons will be dedicated to practical hand-on tutorials. Several computational codes are actively being developed, capable of simulating molecules, pure and defective crystals, surface and transport properties, and reactive processes in the bulk and interfaces. Getting familiar with the different codes and their possibilities requires an adequate training that merges theory and practice in substantial amounts.

More info at: https://www.cecam.org/workshop-1553.html