Information-capacity description of spin-chain correlations

Details Information-capacity description of spin-chain correlations Information-capacity description of spin-chain correlations

2004-05-19

arxiv.org/abs/quant-ph/0405110v3

Phys. Rev. A 71, 032314 (2005).

Physics

Quantum Physics

12 pages, 3 figures; typos corrected (to appear in PRA)

Scientific paper

10.1103/PhysRevA.71.032314

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.

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