Resonant tunneling through a quantum dot in an Aharanov-Bohm ring: results from bosonization

Durganandini, P. ; Rao, Sumathi (2000) Resonant tunneling through a quantum dot in an Aharanov-Bohm ring: results from bosonization Physical Review B: Condensed Matter and Materials Physics, 61 (7). pp. 4739-4742. ISSN 2469-9950

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Official URL: https://journals.aps.org/prb/abstract/10.1103/Phys...

Related URL: http://dx.doi.org/10.1103/PhysRevB.61.4739

Abstract

We study coherent charge tunneling through a one-dimensional interacting ring with a one-dimensional quantum dot embedded in one of its arms through bosonization. The symmetries of the effective action explain many of the features such as phase change between resonances, in-phase successive resonances and phase-locking, which have been observed in experiments of coherent transport in mesoscopic rings, with a quantum dot. We also predict changes in the behavior of the tunneling conductance in the presence of an Aharanov-Bohm flux through the ring. We argue that these results hold true in general for any dot.

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ID Code:109518
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