Electron Pair Resonance in the Coulomb Blockade

Abstract

We study many-body corrections to the cotunneling current via a localized state with energy ${\epsilon }_d$ at large bias voltages $V$. We show that the transfer of {\em electron pairs}, enabled by the Coulomb repulsion in the localized level, results in ionization resonance peaks in the third derivative of the current with respect to $V$, centered at $eV=\pm 2{\epsilon }_d/3$. Our results predict the existence of previously unnoticed structure within Coulomb-blockade diamonds.

5 pages, 4 figures

References in corpus (3)

• Electron energy relaxation in the presence of magnetic impurities
• 3e tunneling processes in a superconducting single-electron tunneling transistor
• A fast, primary Coulomb blockade thermometer

Cited by in corpus (7)

• A perturbative nonequilibrium renormalization group method for dissipative quantum mechanics: Real-time RG in frequency space (RTRG-FS)
• Real-time renormalization group in frequency space: A 2-loop analysis of the nonequilibrium anisotropic Kondo model at finite magnetic field
• Pair-tunneling resonance in the single-electron transport regime
• Transport mirages in single-molecule devices
• Floquet-engineered pair and single particle filter in the Fermi Hubbard model
• Thermovoltage in quantum dots with attractive interaction
• Supergap anomalies in cotunneling between N-S and between S-S leads via a small quantum dot