Welcome to the 13th International Workshop on Warm Dense Matter

This workshop is the latest in a long-standing series dedicated to advancing experimental, theoretical, and computational research in the field of Warm Dense Matter (WDM), a complex regime at the intersection of solid-state, plasma, and high-energy-density physics.

It will be held in La Rochelle, France on May 25 to 28, 2027

The event will bring together leading researchers to present in-depth insights, review recent advances, and assess the current state of the field. It aims to foster collaboration, bridge gaps between experimental, theoretical, and computational approaches, and inspire the next generation of scientists to tackle the challenges of this dynamic and interdisciplinary field of research.

The previous workshops were held in:

• Vancouver, Canada (2000)
• Hamburg, Germany (2003)
• Vancouver, Canada (2005)
• Porquerolles, France (2007)
• Hakone, Japan (2009)
• Pacific Grove, USA (2011)
• Saint-Malo, France (2013)
• Kurashiki, Japan (2015)
• Vancouver, Canada (2017)
• Travemunde, Germany (2019)
• Awaji, Japan (2023)
• Santa Fe, USA (2025)

About Warm Dense Matter

Warm Dense Matter (WDM) is a complex state of matter that occupies an intermediate region of phase space, lying between solids, liquids, and plasmas. It is characterized by the coexistence of strongly coupled ions and moderately degenerate electrons. This combination makes the description of WDM particularly challenging and models originating from condensed matter or plasma physics each encounter significant limitations when applied to this regime. The study of WDM is thus a central and active field of research that requires both advanced simulations performed on large-scale supercomputers and sophisticated experiments, often carried out at major national and international facilities.

WDM is ubiquitous in planetary science and astrophysics, and is central to several unresolved questions, including the structure and age of gas giants and exoplanets. Moreover, since WDM lies at the intersection of solid-state and high energy density physics (HEDP), most of the HEDP experiments cross this challenging region of phase space. Understanding and modeling WDM is therefore essential to the success of HEDP experiments including inertial fusion confinement.

Workshop Goals

The main goal of this workshop is to bring together the scientific community working on warm dense matter. It will offer an overview of the current state of WDM research and highlight recent advances through in-depth presentations. The workshop is intended to foster exchanges and discussions between researchers working in theory, experiment, and numerical simulation in order to seed new collaborations across these areas and attract promising young researchers to this exciting field.

Workshop Topics

1. Equation of state, transport and optical properties
2. Dynamics ultrafast phenomena, non-equilibrium, kinetics, etc.
3. Planetary science geoscience, giant planets, etc.
4. Material science including industrial applications
5. XFEL applications hot dense plasma, X-ray photonics, etc.
6. Shock compression of condensed matter
7. Facility, diagnostics, and other technological advances
8. Advances in data analysis, modelling and numerical simulation including AI/ML

WDM Committee

• Alessandra Benuzzi (Ecole Polytechnique)
• Mandy Bethkenhagen (Centre National de la Recherche Scientifique, CNRS)
• Arianna Gleason-Holbrook (Stanford University)
• Andy Higginbotham (University of York)
• Marius Millot (Lawrence Livermore National Laboratory)
• Norimasa Ozaki (Osaka University)
• Vanina Recoules (Commissariat à l’Energie Atomique, CEA)
• Ronald Redmer (University of Rostock)
• Ying Tsui (University of Alberta)
• Hitoki Yoneda (University of Electro-Communications, UEC)
• Beata Ziaja-Motyka (Center for Free-Electron Laser Science, DESY)
• Andrew Ng (retired)

Sponsors