Phys. Rev. A 71, 032314 (2005) [12 pages]Information-capacity description of spin-chain correlationsReceived 20 May 2004; revised 6 October 2004; published 15 March 2005 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 CE, and the classical capacity C1 of a spin chain with ferromagnetic Heisenberg interactions. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.71.032314
DOI:
10.1103/PhysRevA.71.032314
PACS:
03.67.Hk, 05.50.+q, 03.67.−a, 03.65.Db
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