JOSEPHSON INTERFERENCE PHENOMENA ABOVE T(C)

Superconducting fluctuation, induce remnants of the Josephson effect a bove T(c). To explore this, we consider a paraconducting cylinder, com posed of two thin films connected by tunnel junctions, and threaded by magnetic flux. The electrical conductance includes a component that i s an oscillatory function of the flux, having an amplitude proportiona l to the square of the Joseph coupling, and decaying exponentially wit h the circumference over a length scale xi(T). We estimate the typical magnitude of this effect, and contrast it with related mesoscopic eff ects in normal-metal systems.