Quantum interference in finite-size mesoscopic rings

The Ginzburg-Landau theory is used to model the order parameter of a finite-size mesoscopic ring investigate effects onset screening currents on transport incoming ones. magnetic flux breaks symmetry between input and output stubs by means an induced spatial ordering upon diamagnetic paramagnetic supercurrents circulating in ring. distribution those drives interference incoming/outgoing resulting into sinusoidal variation resistance as function even if density quasiparticles not modified external field.