dc and ac Josephson effect in a superconductor–Luttinger-liquid–superconductor system
dc and ac Josephson effect in a superconductor–Luttinger-liquid–superconductor system
We calculate both the DC and the AC Josephson current through a one-dimensional system of interacting electrons, connected to two superconductors by tunnel junctions. We treat the (repulsive) Coulomb interaction in the framework of the one-channel, spin-$1/2$ Luttinger model. The Josephson current is obtained for two geometries of experimental relevance: …