Coulomb Blockade of Tunneling Through a Double Quantum Dot

Abstract

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.

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

References in corpus (7)

• Coulomb blockade at almost perfect transmission
• Collective Coulomb Blockade in an Array of Quantum Dots: A Mott-Hubbard Approach
• Theory of strong inelastic co-tunneling
• Scaling Of The Coulomb Energy Due To Quantum Fluctuations In The Charge Of A Quantum Dot
• Relation between Barrier Conductance and Coulomb Blockade Peak Splitting for Tunnel-Coupled Quantum Dots
• Coulomb blockade oscillations of conductance in the regime of strong tunneling
• TUNNELING SPECTROSCOPY OF QUANTUM CHARGE FLUCTUATIONS IN THE COULOMB BLOCKADE

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