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

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.

10 pages

References in corpus (1)

• Correlation Functions and Coulomb Blockade of Interacting Fermions at Finite Temperature and Size

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