Biexcitonic Liquid in $\beta$-ZnP${}_2$ Crystal: Quantum Bose Liquid and its Possible Superfluidity

I. S. Gorban, O. A. Yeshchenko, I. M. Dmitruk +1

A phonon-roton dispersion relation is proposed for the elementary excitations of a quantum biexcitonic liquid in semiconductors. The proposed dispersion relation is used as a start…