Information-capacity description of spin-chain correlations
Quantum Physics
2009-11-10 v3 Other Condensed Matter
Abstract
Information capacities achievable in the multi-parallel-use scenarios are employed to characterize the quantum correlations in unmodulated spin chains. By studying the qubit amplitude damping channel, we calculate the quantum capacity , the entanglement assisted capacity , and the classical capacity of a spin chain with ferromagnetic Heisenberg interactions.
Cite
@article{arxiv.quant-ph/0405110,
title = {Information-capacity description of spin-chain correlations},
author = {Vittorio Giovannetti and Rosario Fazio},
journal= {arXiv preprint arXiv:quant-ph/0405110},
year = {2009}
}
Comments
12 pages, 3 figures; typos corrected (to appear in PRA)