Jacek Matulewski
Scientific projects - Presentations
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Title: Electron wavefunction in strong and ultra-strong laser field. One- and two-dimensional ab initio simulations and models
Presentation
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Title: Coherent model of charge transport in DNA.
Abstract: Result for electron hopping transport along the DNA chain studied
theoretically by a straightforward numerical solution of the time-dependent
Schrödinger equation will be presented. Results are given for the hole
transition rates between two guanine bases bridged by sequences of the
adenine-thymine bases with various lengths. Two models will be considered:
one - with time-independent chain structure and the other one – with
positions of bases on the bridge oscillating with time. Only the latter
model is consistent with experimental data. The problem of the incoherence
in the hopping transport mechanism will be discussed.
Presentation
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Title: Phononless Conductivity in a Coulomb Glass.
Abstract: Hopping electric conductivity of a disordered system (Si:P) with
localised states is investigated in different frequencies by direct
numerical simulations taking into account the Coulomb interaction. At
sufficiently low temperatures, the conductivity is determined by the
zero-phonon absorption of photon by pairs of states, which we are
focused on. Shape of the single-particle DOS near the Fermi level is
examined due to check the Efros and Shklovskii model of Coulomb Glass as
well as the conductivity and pair-distribution for small frequencies
which was recently measured by Helgren et. al. Basing on numerical
results we determine the localisation range for different systems.
Presentation
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Title: Coulomb glass. Computer simulations (the dynamics of the CG, the glass transition in CG).
Presentation