Multi-Particle Tunneling Transport at Strongly-Correlated Interfaces

Hiroyuki Tajima; Daigo Oue; Mamoru Matsuo

doi:10.1103/physreva.106.033310

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arXiv · 2110.11701

Multi-Particle Tunneling Transport at Strongly-Correlated Interfaces

Hiroyuki Tajima·Daigo Oue·Mamoru Matsuo

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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.

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Hiroyuki Tajima, Daigo Oue, Mamoru Matsuo. 2021-10-22. Multi-Particle Tunneling Transport at Strongly-Correlated Interfaces. https://doi.org/10.1103/physreva.106.033310

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