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Interplay of Coulomb blockade and Aharonov-Bohm resonances in a Luttinger liquid

Jari M. Kinaret·Mats Jonson·Robert I. Shekhter·Sebastian Eggert
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Abstract

We consider a ring of strongly interacting electrons connected to two external leads by tunnel junctions. By studying the positions of conductance resonances as a function of gate voltage and magnetic flux the interaction parameter $g$ can be determined experimentally. For a finite ring the minimum conductance is strongly influenced by device geometry and electron-electron interactions. In particular, if the tunnel junctions are close to one another the interaction-related orthogonality catastrophe is suppressed and the valley current is unexpectedly large.

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Jari M. Kinaret, Mats Jonson, Robert I. Shekhter, Sebastian Eggert. 1997-06-02. Interplay of Coulomb blockade and Aharonov-Bohm resonances in a Luttinger liquid. https://doi.org/10.1103/physrevb.57.3777

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