Physics – Quantum Physics
Scientific paper
2005-11-12
Phys. Rev. Lett. 96 220505 (2006)
Physics
Quantum Physics
4 pages, 3 figures
Scientific paper
10.1103/PhysRevLett.96.220505
We experimentally demonstrate optimal entanglement distillation from two forms of two-qubit mixed states under local filtering operations according to the constructive method intruduced by F. Verstraete et al. [Phys. Rev. A 64, 010101(R) (2001)]. In principle, our set-up can be easily applied to distilling entanglement from arbitrary two-qubit partially mixed states. We also test the violation of the Clauser-Horne-Shinmony-Holt (CHSH) inequality for the distilled state from the first form of mixed state to show its "hidden non-locality".
Guo Guang-Can
Huang Yun-Feng
Ren Xi-Feng
Wang Zhi-Wei
Zhang Yong-Sheng
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