Yambo school in Rome April 2023

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Daniele Varsano
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Yambo school in Rome April 2023

Post by Daniele Varsano » Tue Mar 07, 2023 8:36 am

We are pleased to announce the MaX school:

Ab initio many-body perturbation theory: from equilibrium to time-resolved spectroscopies and nonlinear optics

The school will take place in person, from May 22nd to May 26th, 2022 at Argiletum palace in Rome.

The aim of this school is to equip students with the essential knowledge, practical skills and computational tools needed to tackle today’s novel and challenging problems in materials science and nonequilibrium physics. We will introduce students to many-body perturbation theory (MBPT) approaches, including advanced concepts, for modelling nonequilibrium phenomena from first principles. We will also discuss how model systems can help overcome some of the limitations of fully ab initio schemes.

The school features theoretical and technical lectures in the morning, followed by hands-on in the afternoon. Distinguished scientists and emerging young researchers in the field of condensed matter and nonequilibrium physics will provide the theoretical background and technical lectures. Each topic will be introduced with a general overview of experimental measurements and/or physical problems, with emphasis on the connection to the simulations performed by the students in the hands-on sessions, which will be led by the main developers of the codes Yambo1 and CHEERS2.

The main topics covered include the GW approximation for quasiparticle corrections and the Bethe-Salpeter Equation (BSE) for excitons, with a focus on recent developments ìn the Yambo code. Furthermore, we will introduce the specific usage of the code in massively parallel environments equipped with modern accelerated video cards (GPUs).
Then, students will be introduced to nonequilibrium Green's function theory (NEGF), with theoretical lectures covering modern pump-and-probe experiments based on ultra-short laser pulses as well as nonlinear optical properties. Recent developments in the Yambo code to capture the physics of nonequilibrium quasiparticles, excitonic energies and the simulation of time-resolved ARPES spectroscopy will be discussed. Finally, students will be guided through the main concepts needed to treat dynamical self-energies within NEGF in order to address dissipative mechanisms and carrier (exciton) dynamics, with hands-on on the usage of the linear scaling implementation available in the CHEERS code2.

Applicants are required to have a background in DFT and in running DFT simulations.

There is no registration fee and we encourage applications from female scientists.
Participants will have the opportunity to present a poster and discuss their results in a dedicated session.

For more details, program and application form, please follow the link:

Deadline: 9th April 2023
For Info, email : yambo@yambo-code.org

The organisers:

Daniele Varsano (CNR-NANO), Maurizia Palummo (University of Rome Tor Vergata), Davide Sangalli (CNR-ISM), Myrta Grüning (Queen's University Belfast), Alejandro Molina-Sánchez (University Of Valencia), Fulvio Paleari (CNR-NANO), Olivia Pulci (University of Rome Tor Vergata), Matteo D’Alessio (University of Modena and Reggio Emilia).

Yambo is a flagship code of the MaX Centre of Excellence and of the recently established ICSC PNRR Italian National Centre for HPC, Big Data and Quantum Computing.

CHEERS is a simulation tool for correlated hole-electron evolution from real-time simulations developed at the University of Rome Tor Vergata.

1. Marini, A., Hogan, C., Grüning, M. and Varsano, D., Computer Physics Communications, 180, 1392 (2009);, D. Sangalli, et al. Journal of Physics: Condensed Matter 31.32, 325902 (2019)
2. E. Perfetto and G. Stefanucci, J. Phys.: Condens. Matter 30 465901 (2018)
3. Y. Pavlyukh, E. Perfetto, Daniel Karlsson, Robert van Leeuwen, and G. Stefanucci Phys. Rev. B 105, 125134 (2022); Y. Pavlyukh, E. Perfetto, Daniel Karlsson, Robert van Leeuwen, and G. Stefanucci Phys. Rev. B 105, 125135 (2022)
Dr. Daniele Varsano
S3-CNR Institute of Nanoscience and MaX Center, Italy
MaX - Materials design at the Exascale

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