Coherent versus sequential electron tunneling in quantum dots

Abstract

Manifestations of quantum coherence in the electronic conductance through nearly closed quantum dots in the Coulomb blockade regime are addressed. We show that quantum coherent tunneling processes explain some puzzling statistical features of the conductance peak-heights observed in recent experiments at low temperatures. We employ the constant interaction model and the random matrix theory to model the quantum dot electronic interactions and its single-particle statistical fluctuations, taking full account of the finite decay width of the quantum dot levels.

5 pages, 3 figures

References in corpus (3)

• Effects of spin and exchange interaction on the Coulomb-blockade peak statistics in quantum dots
• Exchange and the Coulomb blockade: Peak height statistics in quantum dots
• Random matrix theory for closed quantum dots with weak spin-orbit coupling

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• Single electron tunneling with "slow" insulators
• Investigating interaction-induced chaos using time-dependent density functional theory
• Dissipative tunneling in structures with quantum dots and quantum molecules
• Multiple path adiabatic crossing in a 3 site ring
• Optimal control over the full counting statistics in a non-adiabatic pump
• Multiple path transport in quantum networks