Figure 4
From: Theory for electric dipole superconductivity with an application for bilayer excitons
The electric dipole current Josephson junction.
(a) The schematic diagram for the device of dipole current Josephson junction, the bilayer exciton system-insulator-bilayer exciton system junction. The left sides of the two layers are connected by a wire and the right sides of the two layers are connected with voltages V2 and −V2, respectively. V1 and −V1 are the voltages of the left sides of the two layers. The red arrows denote the direction of the electric fields in the top layer and bottom layer, respectively, while the blue arrows represent the flowing direction of holes (electrons) in the top (bottom) layer. (b) The top figure and the bottom figure show the Cooper pairs (electron-electron pairs) in a ordinary superconductor under a voltage V2 − V1 and the electric dipoles (electron-hole pairs) in an electric dipole superconductor under a bilayer counter voltage, respectively. Here the Cooper pairs and the electric dipoles feel the same electric forces.
