Scientific Achievements in 2007/2008 academic year

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The research conducted at the Institute last year concerned the study of nonlinear systems dynamics including stochastic processes. These included singular quantum models (low-dimensional systems, singular potentials), adsorbate surface state modelling, magnetic nanoparticles dynamics modelling and magnetic nanoparticles dynamics in polymer systems modelling. The theoretical research was backed up by experimental research. In particular, this research concerned the study of complex compounds by EPR spectrum methods, surface electron emission from composites based on ferroelectrics and polymers.

The most important achievements of research teams of our Institute are the following:

  1. Within the properties of the neutral meson complex subject area the properties of scalar products of long- and short- lived superpositions of K mesons were studied. It was shown that within the exact theory, in a CPT invariant system in which the CP symmetry is broken this product cannot be a real number. In comparison, in the approximate Lee-Oehme and Yang theory this product is real. This result is important for the interpretation of observational data which are mostly based on approximate models.
  2. The absorption spectra for absorption induced by the gas intermolecular interaction on carbon nanotubes and fullerenes were studied. This research is important for developing new technologies which make use of the diffusive properties of gas in carbon nanotubes.
  3. Within the experimental section of the research which uses positon annihilation methods, the surface layers of aluminum alloys were studied for the existence of defects. This study included theoretical calculation of the depth-temperature distribution around the contact point in the kinetic (sliding) friction.
  4. Theoretical research in which the dynamics of hierarchical physical systems was conducted. It was shown that this dynamics is described by the Levy processes.
  5. It was shown, within a theoretical model, that it is possible to produce new polymer materials with built-in magnetic nanoparticles. The mechanical properties of these particles are characterized by a negative Poisson coefficient, which is attained by the use of negative elasto-magnetic coupling.