Information-capacity description of spin-chain correlations
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 Q , the entanglement assisted capacity CE , and the classical capacity C1 of a spin chain with ferromagnetic Heisenberg interactions.
- Publication:
-
Physical Review A
- Pub Date:
- March 2005
- DOI:
- 10.1103/PhysRevA.71.032314
- arXiv:
- arXiv:quant-ph/0405110
- Bibcode:
- 2005PhRvA..71c2314G
- Keywords:
-
- 03.67.Hk;
- 05.50.+q;
- 03.67.-a;
- 03.65.Db;
- Quantum communication;
- Lattice theory and statistics;
- Quantum information;
- Functional analytical methods;
- Quantum Physics;
- Other
- E-Print:
- 12 pages, 3 figures