Charged vortices in superfluid systems with pairing of spatially separated carriers

Details Charged vortices in superfluid systems with pairing of spatially separated carriers Charged vortices in superfluid systems with pairing of spatially separated carriers

2002-09-19

arxiv.org/abs/cond-mat/0209462v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages

Scientific paper

10.1103/PhysRevB.67.214515

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 and the Bohr radiuses of electrons and holes. In double layer systems at equal electron and hole filling factors in the case of the electron and hole Bohr radiuses much larger than the magnetic length the vortex charge is equal to the universal value (electron charge times the filling factor).

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