Mgr. Jindrich Kolorenc, PhD.
I. Institut für Theoretische Physik, Universität Hamburg, Jungiusstraße 9, 20355 Hamburg, Germany[group of A. I. Lichtenstein]
Email: < kolorenc (at) fzu (dot) cz >
Research interests
More details can be found in papers linked in the publication list.
- quantum Monte Carlo (QMC) methods for electronic structure
- properties of deep Earth materials under extreme conditions
- model description of cold atomic systems, BCS-BEC crossover
- contributions to the quantum Monte Carlo code QWalk (browse repository)
- several simple simulations I did some time ago to get started with the method
- advanced mean-field approaches
- asymptotic limit to high spatial dimensions for lattice fermions
- dynamical mean-field theory (DMFT) and beyond
- applications of LDA+DMFT concept to materials with strongly correlated electrons
- transport in disordered systems
- diagrammatic approximations for two-particle vertex functions
- from weak to Anderson localization
Structural phase transition in crystalline FeO under pressure
(in collaboration with
Lubos Mitas, NCSU)
Pressure-volume equation of state of crystalline iron oxide calculated
using diffusion quantum Monte Carlo method (lines),
Phys.
Rev. Lett. 101, 185502 (2008).
Legend: rock salt (B1) structure stable at low pressures (red line), NiAs (iB8) structure stable at high pressures (blue line), B1 experimental data (circles), iB8 experimental data (squares). Diffusion Monte Carlo predicts the transition pressure Pc at approximately 65 GPa, providing substantial improvement compared to DFT based approaches.
Mean-field phase diagram for non-interacting disordered electrons
(in collaboration with
Vaclav Janis)
Phase diagram for an impure crystal calculated from our proposal of a
mean field theory for disordered electronic systems,
Phys. Rev. B
71, 033103 (2005), ibid.
245106 (2005).
Legend: energy of quantum state (x-axis), measure of disorder strength (y-axis), band edge (black line), mobility edge (red line), localized/non-diffusive states (hatched area), extended/transport states (white "egg")
Teaching
- exercises that accompany undergraduate course of Thermodynamics and Statistical Physics (Faculty of Mathematics and Physics, Charles University, Prague) - somewhat outdated (I was doing this in years 2002-2005), but might not be completely useless if you understand czech