Bisoliton Mechanism of High‐Temperature Superconductivity

A moderately strong electron–phonon interaction is used to develop a nonlinear bisoliton model of high‐temperature superconductivity in ceramic oxides. The absence of an isotopic effect is explained. The dependence of the critical temperature for a superconducting transition and of the formation of a bisoliton condensate on bisoliton concentration is explained qualitatively. It is shown that at low temperatures electrons with an energy above the critical one come from a metal to a superconductor at equal time intervals only in pairs in a singlet spin state as bisolitons.