TUNNELING SPECTROSCOPY OF QUANTUM CHARGE FLUCTUATIONS IN THE COULOMB BLOCKADE

Abstract

We present a theory of Coulomb blockade oscillations in tunneling through a pair of quantum dots connected by a tunable tunneling junction. The positions and amplitudes of peaks in the linear conductance are directly related, respectively, to the ground state energy and to the dynamics of charge fluctuations. We study analytically both strong and weak interdot tunneling. As the tunneling decreases, the period of the peaks doubles, as observed experimentally. In the strong tunneling limit, we predict a striking power law temperature dependence of the peak amplitudes.

4 pages, revtex3.0, 1 figure uuencoded

References in corpus (3)

• Coulomb blockade at almost perfect transmission
• Collective Coulomb Blockade in an Array of Quantum Dots: A Mott-Hubbard Approach
• Tunneling in the Electron Box in the Nonperturbative Regime

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