Universal Quantum Entanglement Concentration Gate
Zi-Yang Wang, Chuan-Wei Zhang, Chuan-Feng Li, Guang-Can Guo
Abstract
We construct a Universal Quantum Entanglement Concentration Gate (QEC-Gate). Special times operations of QEC-Gate can transform a pure 2-level bipartite entangled state to nearly maximum entanglement. The transformation can attain any required fidelity with optimal probability by adjusting concentration step. We also generate QEC-Gate to the Schmidt decomposable multi-partite system.
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