Relay entanglement and clusters of correlated spins
Quantum Physics
2018-04-19 v2
Abstract
Considering a spin-1/2 chain, we {suppose} that the entanglement passes from a given pair of particles to another one, thus establishing the relay transfer of entanglement along the chain. Therefore, we introduce the relay entanglement as a sum of all pairwise entanglements in a spin chain. For more detailed studying the effects of {remote} pairwise entanglements, we use the partial sums collecting entanglements between the spins separated by up to a certain number of nodes. The problem of entangled cluster formation is considered, and the geometric mean entanglement is introduced as a {characteristics} of quantum correlations in a cluster. Generally, the life-time of a cluster decreases with an increase in its size.
Keywords
Cite
@article{arxiv.1712.10188,
title = {Relay entanglement and clusters of correlated spins},
author = {S. I. Doronin and A. I. Zenchuk},
journal= {arXiv preprint arXiv:1712.10188},
year = {2018}
}
Comments
20 pages, 9 figures