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Universal conductance fluctuations in mesoscopic systems with superconducting leads: Beyond the Andreev approximation
We report our investigation of the sample to sample fluctuation in transport properties of phase coherent normal-metal-superconductor hybrid systems. Extensive numerical simulations were carried out for quasi-one-dimensional and two-dimensional systems in both square lattice (Fermi electron) as well as honeycomb lattice (Dirac electron). Our results show that when the Fermi …