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arXiv · quant-ph/0611196

Experimental entanglement verification and quantification via uncertainty relations

Zhi-Wei Wang·Yun-Feng Huang·Xi-Feng Ren·Yong-Sheng Zhang·Guang-Can Guo
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Abstract

We report on experimental studies on entanglement quantification and verification based on uncertainty relations for systems consisting of two qubits. The new proposed measure is shown to be invariant under local unitary transformations, by which entanglement quantification is implemented for two-qubit pure states. The nonlocal uncertainty relations for two-qubit pure states are also used for entanglement verification which serves as a basic proposition and promise to be a good choice for verification of multipartite entanglement.

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Zhi-Wei Wang, Yun-Feng Huang, Xi-Feng Ren, Yong-Sheng Zhang, Guang-Can Guo. 2007-05-09. Experimental entanglement verification and quantification via uncertainty relations. https://doi.org/10.1209/0295-5075/78/40002

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