Bogolon-mediated electron capture by impurities in hybrid Bose-Fermi systems

M. V. Boev*, V. M. Kovalev, I. G. Savenko

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


We investigate the processes of electron capture by a Coulomb impurity center residing in a hybrid system consisting of spatially separated two-dimensional layers of electron and Bose-condensed dipolar exciton gases coupled via the Coulomb forces. We calculate the probability of the electron capture accompanied by the emission of a single Bogoliubov excitation (bogolon), similar to regular phonon-mediated scattering in solids. Furthermore, we study the electron capture mediated by the emission of a pair of bogolons in a single capture event and show that these processes not only should be treated in the same order of the perturbation theory, but also they give a more important contribution than single-bogolon-mediated capture, in contrast with regular phonon scattering.

Original languageEnglish
Article number165305
JournalPhysical Review B
Issue number16
StatePublished - 13 Apr 2018
Externally publishedYes


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