Microscopic model for a strongly correlated superconducting single-electron transistor
Enrico Perfetto, Michele Cini
DOI 10.1103/PhysRevB.71.014504 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We model a Superconducting Single-Electron Transistor operating by repulsive interactions. The device consists of a ring of Hubbard clusters, placed between electrodes and capacitively coupled to a gate potential. In each cluster, a pair of electrons at appropriate filling feels a weak effective interaction which leads to pairing in part of the parameter space. Thus, the system can host many bound pairs, with correlation induced binding. When the charging energy exceeds the pairing energy, single-electron tunneling prevails; in the opposite regime, we predict the Coulomb blockade pattern of two-electron tunneling. This suggests that in tunneling experiments repulsion-induced pairs may behave in a similar way as phonon-induced ones.
Similar papers
Microscopic Model for a Strongly Correlated Superconducting Single-Electron-Transistor
similarity 0.93Enrico Perfetto & Michele Cini · 2004 · arXiv:cond-mat/0411076
Source status unknown — claims are unverified
Superconductor-Insulator transition in a two-orbital attractive Hubbard model with Hund's exchange
similarity 0.88Laura Torchia & Massimo Capone · 2025 · arXiv:2505.08597
Source status unknown — claims are unverified
Effect of pair hopping and magnitude of intra-atomic interaction on exchange-mediated superconductivity
similarity 0.88J. Spałek
Source status unknown — claims are unverified
ac Josephson Effect and Resonant Cooper Pair Tunneling Emission of a Single Cooper Pair Transistor
similarity 0.88P.-M. Billangeon et al.
Source status unknown — claims are unverified
Superconducting proximity effect in two-dimensional hole gases
similarity 0.88Serafim S. Babkin et al.
Source status unknown — claims are unverified
Josephson Transport through a Hubbard Impurity Center
similarity 0.87V. I. Kozub et al.
Source status unknown — claims are unverified