%0 Journal Article
%T Information-capacity description of spin-chain correlations
%A Vittorio Giovannetti
%A Rosario Fazio
%J Physics
%D 2004
%I arXiv
%R 10.1103/PhysRevA.71.032314
%X 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 $Q$, the entanglement assisted capacity $C_E$, and the classical capacity $C_1$ of a spin chain with ferromagnetic Heisenberg interactions.
%U http://arxiv.org/abs/quant-ph/0405110v3