Two-electron correlated motion due to Coulomb repulsion
S. A. Gurvitz
Abstract
A Hubbard-type model is derived from the microscopic Schrödinger equation. We found that additional terms describing direct two-electron transitions must be added to the standard Hubbard Hamiltonian. Such a Hamiltonian generates two-electron pairing due to on-site Coulomb repulsion. We demonstrate that the electron pairs with opposite spin propagate across periodic structures via direct and sequential two-electron tunneling. This mechanism can be used for a generation of entangled electron current. Numerical calculations show stability of the electron pairs.
Create a lesson
Related papers
Knots in Condensed Matters
Y. M. Cho
Bouchaud's model exhibits two different aging regimes in dimension one
Gerard Ben Arous, Jiri Cerny
Periodic diffraction patterns for 1D quasicrystals
Pawel Buczek, Lorenzo Sadun, Janusz Wolny
Adiabatic association of ultracold molecules via magnetic field tunable interactions
Krzysztof Goral, Thorsten Koehler, Simon A. Gardiner et al.
High-Temperature Atomic Superfluidity in Lattice Boson-Fermion Mixtures
F. Illuminati, A. Albus
Constructive Methods of Invariant Manifolds for Kinetic Problems
A. N. Gorban, I. V. Karlin, A. Yu. Zinovyev