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arXiv · 0909.2743

Experimental generation of pseudo bound entanglement

H. Kampermann·X. Peng·D. Bruss·D. Suter
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Abstract

We use Nuclear Magnetic Resonance (NMR) to experimentally generate a bound entangled (more precisely: pseudo bound entangled) state, i.e. a quantum state which is non-distillable but nevertheless entangled. Our quantum system consists of three qubits. We characterize the produced state via state tomography to show that the created state has a positive partial transposition with respect to any bipartite splitting, and we use a witness operator to prove its entanglement.

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H. Kampermann, X. Peng, D. Bruss, D. Suter. 2009-09-15. Experimental generation of pseudo bound entanglement. https://doi.org/10.1103/physreva.81.040304

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