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Entanglement Theory Quantum Correlations

Experimental Measurement of Multi-dimensional Entanglement via Equivalent Symmetric Projection

arXiv

Authors: F. W. Sun, J. M. Cai, J. S. Xu, G. Chen, B. H. Liu, C. F. Li, Z. W. Zhou, G. C. Guo

Year

2007

Paper ID

50048

Status

Preprint

Abstract Read

~2 min

Abstract Words

124

Citations

N/A

Abstract

We construct a linear optics measurement process to determine the entanglement measure, named I-concurrence, of a set of 4 times 4 dimensional two-photon entangled pure states produced in the optical parametric down conversion process. In our experiment, an equivalent symmetric projection for the two-fold copy of single subsystem presented by L. Aolita and F. Mintert, Phys. Rev. Lett. textbf{97}, 050501 (2006) can be realized by observing the one-side two-photon coincidence without any triggering detection on the other subsystem. Here, for the first time, we realize the measurement for entanglement contained in bi-photon pure states by taking advantage of the indistinguishability and the bunching effect of photons. Our method can determine the I-concurrence of generic high dimensional bipartite pure states produced in parametric down conversion process.

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We construct a linear optics measurement process to determine the entanglement measure, named I-concurrence, of a set of 4 times 4 dimensional two-photon entangled pure states...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0706.0935 [2] arXiv https://arxiv.org/abs/0706.0935 [3] Publisher https://arxiv.org/abs/0706.0935

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