Many-Particle Systems under Extreme Conditions

Polish-German WE-Heraeus-Seminar

03 Dec - 06 Dec 2023


Görlitz, Kulturforum Synagoge

Scientific organizers:

Prof. Dr. David Blaschke, U of Wroclaw • Prof. Thomas D. Kühne, CASUS Görlitz • Prof. Dr. Ralf Schützhold, HZDR Dresden

The workshop aims at establishing a cooperation between groups in Poland and Germany working in the field of “many-particles systems under extreme conditions”, based on the complementarity of their methodic expertise and fields of applications.

The Wroclaw team is specialized on quantum field theory (QFT) based methods of deriving the equation of state (EOS) of strongly interacting matter, with the quark-hadron phase transition (PT) and the phase diagram of quantum chromodynamics (QCD) as main objectives. Their applications concern the description of particle production in heavy-ion collisions, the simulation of core-collapse supernovae and neutron star mergers as well as constraining the nuclear EOS from observations of static properties of neutron stars. The goal is to pin down the line of (pseudo-) critical temperatures TC(μ) in the QCD phase diagram and to locate the possible critical endpoint of first-order PTs and color superconducting quark matter phases.

The CASUS team develops powerful modern simulation techniques and density functional theory for many-particle systems to study correlations in warm, dense plasmas which are benchmarked by Path-Integral Monte-Carlo (PIMC) simulations. Applications concern inertial fusion plasmas and interiors of giant (exo-)planets. Machine learning tools (MALA code) have been developed that are provided for interdisciplinary use.

The ITP team studies with manly analytic methods fundamental non-equilibrium phenomena such as the instability of the vacuum against pair creation and birefringence in strong (laser) fields. Astonishing similarities are found with phenomena in quite different disciplines like ultra-cold atomic gases, ions in traps and electrons and phonons in solids.