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Updated: Jan 28, 2026

Molecular Entanglement and Electrospinnability of Biopolymers
Published on: September 3, 2014
Experimental Reconstruction of Entanglement Quasiprobabilities
J Sperling1, E Meyer-Scott1, S Barkhofen1
1Integrated Quantum Optics Group, Applied Physics, University of Paderborn, 33098 Paderborn, Germany.
Abstract:
We report on the first experimental reconstruction of an entanglement quasiprobability. In contrast to related techniques, the negativities in our distributions are a necessary and sufficient identifier of separability and entanglement and enable a full characterization of the quantum state. A reconstruction algorithm is developed, a polarization Bell state is prepared, and its entanglement is certified based on the reconstructed entanglement quasiprobabilities, with a high significance and without correcting for imperfections.
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