Charged vortices in superfluid systems with pairing of spatially separated carriers

It is shown that in a magnetic field the vortices in superfluid electron-hole systems carry a real electrical charge. The charge value depends on the relation between the magnetic length B and the Bohr radius of electrons a e B and holes a h B. In double-layer systems at filling factors v e = v h = v and for a e B,a h B» B the vortex charge is equal to the universal value ve.