Recent Review papers
Kinetic Theory for Quantum Plasmas, M. Bonitz (2012)
Complex plasmas - a laboratory for strong correlations, M. Bonitz et al. (2010)
Classical and quantum Coulomb crystals, M. Bonitz et al. (2008)
Structure formation in correlated Coulomb systems, M. Bonitz et al. (2006)
Quantendynamik korrelierter Coulombsysteme (German), M. Bonitz (2002)
Scientific interests
- Dense strongly correlated plasmas in astrophysics and laboratory systems
- Electron-hole plasmas in bulk semiconductors, quantum wells, quantum wires and quantum dots
- Quantum confined electrons: Wigner crystallization, transport properties
- Linear and nonlinear plasma oscillations and instabilities in plasmas and solids
- Femtosecond relaxation in laser pulse excited semiconductors
- Interaction of charged particles with strong EM fields, in particular lasers, nonlinear phenomena, harmonics generation
- Bound states (atoms, molecules, excitons) in dense plasmas and semiconductors
- Atoms and molecules in strong laser fields
- Quantum kinetic theory, Nonequilibrium Green's functions
- First principle computer simulations
- Selforganization and structure formation in systems far from equilibrium
Theoretical concepts and numerical methods
- Quantum statistical theory, quantum kinetic equations
- Quantum kinetic equations for the Wigner distribution
- Numerical solution of hydrodynamic and transport equations, reaction-diffusion equations etc.
- Kadanoff-Baym equations for the two-time Green's functions: theory and solution
- Computer simulations: Monte Carlo and molecular dynamics
- Development of new first-principle simulation methods for quantum systems:
- Path integral Monte Carlo simulations
- Quantum Molecular Dynamics based on the Wigner-Liouville equation
- Combination of kinetic theory and simulation methods
Stark korrelierte Coulombsysteme
- Vielteilcheneffekte
- Kollektive Quanteneffekte
- Femtosekundenprozesse
Zum Forschungsschwerpunkt "Plasma Theory".
Zum Forschungsschwerpunkt "Plasma Theory".
Zum Forschungsschwerpunkt "Quantum kinetic Theory".
Zum Forschungsschwerpunkt "Quanten Coulombsysteme".
Zum Forschungsschwerpunkt "Trapped Bose condensates".
Zum Forschungsschwerpunkt "Electron-hole bilayers".
Zum Forschungsschwerpunkt "First principle Computersimulationen".
Zum Forschungsschwerpunkt "First principle Computersimulationen".
Research results and scientific interests
Publication data on
Web of Science
Aktuelle Forschung
- Staubige Plasmen, Plasmakristalle
- Stark korrelierte klassische Plasmen
- Nichtgleichgewichts-Greensfunktionen
- Photoionisation von Atomen in starken Laserfeldern
- Nichtideale Bosonen in Fallen
- Exzitonen in Bilayern, Bosekondensation
- Astrophysikalische Plasmen in kompakten Sternen
Research Results in Pictures
19 Electrons trapped in a spherical electric field. They form shells like atoms in the Mendeleyev table (notice the symmetry), and they may "freeze", i.e. crystallize like in this figure. The pictures are the result of rigorous quantum Monte Carlo calculations. Read in Physical Review Focus (engl.), Wissenschaft Online (ger.), and Sciences et Avenir (fr.) about our work on Wigner crystallization.
Choosing suitable semiconductor properties, the holes (red) form a crystal, while the electrons (yellow) stay in a gas-like state (a quantum Fermi gas). See story "The Hole Crystal" by Kim Krieger in Physical Review Focus.
Feynman's path integral representation of a trapped 2D quantum system with 3 electrons. The concepts and implementation details of the Path Integral Monte Carlo (PIMC) method are explained in our book "Introduction to Computational Methods in Many-Body Physics".
Coulomb ball of N=160 dust grain with 3 shells and a single particle in the trap center. Obtained from first principle MD simulations.
Klein ist anders, die Ideen der Quantentheorie: Ein allgemeinverständliches Poster anlässlich des 150. Geburtstags von Max Planck. Die Geburtstagsrede zum Nachlesen.
Electrons in a laser pulse excited semi- conductor produce such nice picture. The picture is the result of the numerical solution of quantum kinetic equations (Kadanoff-Baym equations). To learn more about the physical processes in a laser excited semiconductor click here.
Two trapped charged bosons for different densities and temperatures;
PIMC simulation by Jens Böning
Configurational change of 10 e-h pairs in coupled quantum dots upon density reduction; Hartree-Fock calculations by Karsten Balzer