Deexcitons in an inverted 2D semiconductor magnetoplasma
Bychkov Yu. A. , Rashba E. I.
An inverted two-dimensional electron-hole magnetoplasma with an integer carrier filling factor is analyzed. It has "deexciton" elementary excitations, i.e., exciton-like quasiparticles characterized by a momentum and a negative energy. The recombination radiation accompanying the formation of deexcitons lies in a narrow band.