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Tunneling through an Aharonov-Bohm ring -- effects of dephasing by electron-electron interactions

Rok Zitko·Janez Bonca
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Abstract

We develop a non-perturbative numerical method to study a single electron tunneling through an Aharonov-Bohm ring in the presence of bound, interacting electrons. Inelastic processes and spin-flip scattering are properly taken into account. We show that electron-electron interactions described by the Hubbard Hamiltonian lead to strong dephasing and we obtain high transmission probability at Phi=pi even at small interaction strength. Depending on the many-electron state on the ring, dephasing can occur in elastic or inelastic channels with or without changing the spin of the scattering electron.

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Rok Zitko, Janez Bonca. 2002-07-12. Tunneling through an Aharonov-Bohm ring -- effects of dephasing by electron-electron interactions. https://arxiv.org/abs/cond-mat/0207329

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