Евгений Думанов » Публикация
Опубликовано
2006-08-24
Опубликовано на SciPeople2009-03-27 13:18:07
ЖурналSolid State Communications
Influence of excited Landau levels on a two-dimensional electron–hole system in a strong perpendicular magnetic field
Solid State Communications 140 (2006) 236–239
Аннотация
The study of the quantum states of a two-dimensional electron–hole system in a strong perpendicular magnetic field is carried out with special
attention to the influence of virtual quantum transitions of interacting particles between the Landau levels. These virtual quantum transitions
from the lowest Landau levels to excited Landau levels with arbitrary quantum numbers n and m and their reversion to the lowest Landau
levels in second order perturbation theory result in an indirect attraction between the particles. The influence of the indirect interaction on the
magnetoexciton ground state, on the chemical potential of the Bose–Einstein condensed magnetoexcitons, and on the ground state energy of the
metallic-type electron–hole liquid is investigated in the Hartree–Fock approximation. The coexistence of different phases is suggested.
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