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arXiv · 1506.05353

Efficient Measurement of Multiparticle Entanglement with Embedding Quantum Simulator

Ming-Cheng Chen·Dian Wu·Zu-En Su·Xin-Dong Cai·Xi-Lin Wang·Tao Yang·Li Li·Nai-Le Liu·Chao-Yang Lu·Jan-Wei Pan
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Abstract

We reports direct and scalable measurement of multiparticle entanglement concurrence and three-tangle with embedding photonic quantum simulators. In this embedding framework [Phys. Rev. Lett. 111, 240502 (2013)], $N$-qubit entanglement monotone, which associates with non-Hermitian operators, can be efficiently measured with only 2 (for even $N$) and 6 (for odd $N$) local measurement settings. Our experiment uses a multiphoton quantum simulator to mimic the dynamical entanglement evolution and track its concurrence and three-tangle.

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Ming-Cheng Chen, Dian Wu, Zu-En Su, Xin-Dong Cai, Xi-Lin Wang, Tao Yang, Li Li, Nai-Le Liu, Chao-Yang Lu, Jan-Wei Pan. 2015-07-12. Efficient Measurement of Multiparticle Entanglement with Embedding Quantum Simulator. https://doi.org/10.1103/physrevlett.116.070502

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