On the boundary conditions to the Ginzburg-Landau equations at the interface of two superconductors with different transition temperatures

The generalized Wiener-Hopf method was used to derive, on the basis of the microscopic BCS theory of superconductivity, the effective boundary conditions to the Ginzburg-Landau equations at the interface of two (including uncommon) superconductors with different transition temperatures in the absence of reflection from the boundary. According to these conditions, the order parameter and its derivative undergo jumps at the interface.