Earth and Planetary Science
EPS Near-Surface Geochemistry and Geobiology

Workshop: Average Atom Models for for Warm Dense Matter

Monday, June 7, 2021
Workshop title Average Atom Models for Warm Dense Matter overlaying close-up photo of the Atomium in Brussels and text in blue banner beneath is 2 Day Online Workshop June 28, 29, 2021

Average Atom Models for Warm Dense Matter

2 Day Online Workshop June 28-29, 2021

Invited talks will be given by  Tilo Doeppner (LLNL), Stephanie Hansen (Sandia), Charles Starrett (LANL), Gerard Massacrier (Lyon), Suxing Hu (LLE), Sang-Kil Son (Hamburg), Dominik Kraus (University Rostock), Sam Vinko (Oxford University), Maxim Kadatskiy (Moscow University), Tim Callow (CASUS), Phil Sterne (LLNL), Jean-Christophe Pain & Nadine Wetta (CEA).

This workshop brings together theorists and experimentalists to discuss average atom models and their applications to the regime of warm dense matter (WDM). This regime is broadly defined as solid-state densities and elevated temperatures on the order of 10 or 100 eV. Under these conditions, quantum and ionization effects, coupling of electronic and ionic constituents, plasma excitations and to some degree also chemical bonds play a role, which makes it challenging to study this regime with theoretical and experimental methods. WDM conditions can be found in the interiors of giant planets and low mass stars. Because of its relevance to inertial confinement fusion, the regime of WDM has been intensely studied with laboratory experiments. Average atom models have been employed to aid the planning and interpretation of these measurements.

The regime of WDM has also been studied with ab initio computer simulations, which typically require substantial computational resources. On the other hand, average atom models are designed to capture the essential aspects of atomic and plasma physics at a much lower computational cost so that thousands of model calculations can be performed to match experimental conditions. Average atom models have a long history. The comparison with laboratory measurements and ab initio simulations has introduced novel developments that go far beyond the canonical Stewart-Pyatt approaches. This workshop tries to capture these new trends.

See the full agenda and register to attend:


Workshop Organizers

  • Burkhard Militzer (UC Berkeley)
  • Gérard Massacrier (CRAL Lyon)
  • Jan Vorberger (CASUS)
  • Francois Soubiran (CEA)
  • Maximilian Böhme (CASUS)