Quantum entanglement of space domains occupied by interacting electrons
Mesoscale and Nanoscale Physics
2009-04-10 v1
Abstract
Spin-entanglement of two electrons occupying two spatial regions -- domains -- is expressed in a compact form in terms of spin-spin correlation functions. The power of the formalism is demonstrated on several examples ranging from generation of entanglement by scattering of two electrons to the entanglement of a pair of qubits represented by a double quantum dot coupled to leads. In the latter case the collapse of entanglement due to the Kondo effect is analyzed.
Cite
@article{arxiv.0810.2935,
title = {Quantum entanglement of space domains occupied by interacting electrons},
author = {A. Ramsak and J. Mravlje and T. Rejec},
journal= {arXiv preprint arXiv:0810.2935},
year = {2009}
}