Two mesoscopic models of two interacting electrons
arXiv:0905.3881 · doi:10.1103/PhysRevB.80.245304
Abstract
We study two simple mesoscopic models of interacting two electrons; first one consists of two quantum coherent parallel conductors with long-range Coulomb interaction in some localized region and the other is of an interacting quantum dot (QD) side-coupled to a noninteracting quantum wire. We evaluate exact two-particle scattering matrix as well as two-particle current which are relevant in a two-particle scattering experiment in these models. Finally we show that the on-site repulsive interaction in the QD filters out the spin-singlet two-electron state from the mixed two-electron input states in the side-coupled QD model.
8 pages, 5 figures, revised version, to appear in Phys. Rev. B
References in corpus (7)
- Tunable Noise Cross-Correlations in a Double Quantum Dot
- Correlated electron tunneling through two separate quantum dot systems with strong capacitive interdot coupling
- Electron counting with a two-particle emitter
- Exact scattering eigenstates, many-body bound states, and nonequilibrium current of an open quantum dot system
- Two-particle scattering matrix of two interacting mesoscopic conductors
- Scattering of electrons from an interacting region
- N-particle scattering matrix for electrons interacting on a quantum dot