Purpose and Goals
The generation and diagnostics of extreme states of matter as appearing in the interior of planets, brown dwarfs and stars is one of the key scientific challenges in a number of scientific fields.
- Generation of such conditions at FLASH and the future free electron laser facility (European XFEL).
- Generation of higher pressures in static experiments both in the laboratory and at synchrotron facilities (PETRA III).
- Development of new diagnostic tools.
- Predictions of high pressure and temperature properties of materials from ab-initio methods.
- Application of such results to the study of interior of planetary and astrophysical bodies.
To bring together researchers from these different fields in the physical sciences, a workshop series has been established by DESY, XFEL GmbH, DLR Berlin, the University of Rostock and Bayerisches Geoinstitut to discuss related topics and problems. Earlier workshops were held at DESY Hamburg (2012), DLR Berlin (2013), University of Rostock (2014), Bayerisches Geoinstitut at the University of Bayreuth (2015), European XFEL/DESY in Hamburg (2016), in Göttingen (2017) and at DLR Berlin (2018).
The aim of the upcoming workshop is to continue the discussion of scientific questions with relevance for extreme planetary environments at high pressures and high temperatures (HP/HT). Such conditions are prevalent in the deep interiors or in the atmospheric envelopes of planets and satellites of our solar system as well as of other star systems. These states of matter are not fully accessible by conventional experimental and theoretical methods. New and enabling techniques to be used in the HP/HT regime are based on the combination of intense pulsed X-ray sources with pulsed sample excitation, in particular but not exclusively related to high energy optical lasers. Complementary, new developments in the theoretical description of matter under extreme conditions allow wider application of first principle simulations and an improved predictive power for HP/HT states in the planetary interiors.
The following topics will be part of the workshop:
- Evolution and structure of giant planet interiors
- Interior structure, bulk composition, and internal geodynamics of solid planets
- Deep volatile cycles and exchange processes between geochemical reservoirs
- Physics and chemistry of impact processes
- Equations of state, petrology, and geochemistry of planetary materials
- Melting relations and phase transformations of materials at extreme states
- Dynamic and ultrafast processes in strongly excited solids or similar
- Compression experiments using high-power optical and free electron lasers
- Laboratory experiments using multi-anvil and diamond-anvil cells
- Ab-initio simulation studies for matter under extreme conditions
Abstracts and contributions are welcome to the above subject areas that represent an initial outline and are open to further suggestions. The workshop will include a mix of solicited, contributed and poster presentations. This meeting is also intended to inspire new projects and offer a discussion space to foster collaboration between workshop participants from the various research fields.
Confirmed Invited Speakers
- Frank Stefani (HZDR Dresden)
- Norimasa Ozaki (Osaka University)
- Eli Galanti (Weizmann Institute of Science)
- Bartomeu Monserrat (University of Cambridge)
- Thomas Duffy (Princeton University)
- Alessandra Ravasio (LULI; Universite Paris VI)