We experimentally demonstrate optimal entanglement distillation from two forms of two-qubit mixed states under local filtering operations according to the constructive method introduced by Verstraete et al. [Phys. Rev. A 64, 010101(R) (2001)]. In principle, our set-up can be easily applied to distil entanglement from arbitrary two-qubit partially mixed states. We also test the violation of the Clauser-Horne-Shimony-Holt inequality for the distilled state from the first form of mixed state to show its “hidde...
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