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

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

1997-06-02

arxiv.org/abs/cond-mat/9706008v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages

Scientific paper

10.1103/PhysRevB.57.3777

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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