Multi-Particle Tunneling Transport at Strongly-Correlated Interfaces

Abstract

We elucidate the multi-particle transport of pair- and spin-tunnelings in strongly correlated interfaces. Not only usual single-particle tunneling but also interaction-induced multi-particle tunneling processes naturally arise from a conventional microscopic model without any empirical parameters, through the overlap of the many-body wave functions around the interface. We demonstrate how anomalous tunneling currents occur in a strongly interacting system due to the pair-tunneling process which we derived microscopically. Our formulation is useful for junction systems in various disciplines, including atomtronics, spintronics, and nuclear reactions.

arXiv comment9 pages, 2 figures

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• Magnonic spin current shot noise in an itinerant Fermi gas
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• Microscopic theory of Rashba-Edelstein magnetoresistance