Transitions in quantum networks
Quantum Physics
2009-10-31 v2
Abstract
We consider transitions in quantum networks analogous to those in the two-dimensional Ising model. We show that for a network of active components the transition is between the quantum and the classical behaviour of the network, and the critical amplification coincides with the fundamental quantum cloning limit.
Cite
@article{arxiv.quant-ph/9802024,
title = {Transitions in quantum networks},
author = {Paivi Torma},
journal= {arXiv preprint arXiv:quant-ph/9802024},
year = {2009}
}
Comments
Revised version: Eq.(7) of the previous version changed, references added; 4 pages, 1 figure