На главную
На сайт
Студенты и
Development of the first order phase transitions theory.

In the Department attention is granted to the process of first order phase transitions. The problem is to invent a theory describing all stage of system evolution, from the moment of metastability formation up to its disappearance. Barrier character of the new phase generation process imply the main difficulty. The particle of new phase has to overcome in a fluctuating way the state unfavourable from the energetic point of view. Parameters of this effective energy barrier are depending on the metastability degree of the initial phase so this phenomenon is essentially non-liner process. The serious problem is to describe the barrier as it is localized in the region of very small sizes of new phase particles. In order to obtain a reasonable accuracy we have to consider very delicate microeffects, such as dependence of the evaporation velocity on particles cooling due to the lost of each molecules.

People who work in this field:

D. Sc. Professor Alexandr Shchekin

The Department of Statistical Physic
Sain-Petersburg State University, Russia
Russian Version

Main fields of the scientific research
Wave scattering and liquid crystals.

The development of quantum - field theory to the statistical physics problems.

The first order phase transitions theory.

Electron properties of low dimension systems.