Coulomb Blockade of Tunneling Through a Double Quantum Dot

Details Coulomb Blockade of Tunneling Through a Double Quantum Dot Coulomb Blockade of Tunneling Through a Double Quantum Dot

1995-12-11

arxiv.org/abs/cond-mat/9512082v1

Physics

Condensed Matter

11 pages, revtex3.0 and multicols.sty, 4 figures uuencoded

Scientific paper

10.1103/PhysRevB.54.5637

We study the Coulomb blockade of tunneling through a double quantum dot. The temperature dependence of the linear conductance is strongly affected by the inter-dot tunneling. As the tunneling grows, a crossover from temperature-independent peak conductance to a power-law suppression of conductance at low temperatures is predicted. This suppression is a manifestation of the Anderson orthogonality catastrophe associated with the charge re-distribution between the dots, which accompanies the tunneling of an electron into a dot. We find analytically the shapes of the Coulomb blockade peaks in conductance as a function of gate voltage.

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