On the theory of the molecular states of $A^{+}$-centers in semiconductor quantum wells

The spectra of photoluminescence in the GaAs/AlGaAs quantum wells with $A_2^{+}$-centers are calculated within the model of the zero radius potential. It is shown that the model of $A_2^{+}$-centers can adequately describe the experimental data that point to the existence of molecular states of$A^{+}$-centers in 2D GaAs/AlGaAs structures.