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1 May 2017 Nonlocal correlations of polarization-entangled photons through brain tissue (Conference Presentation)
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We investigated the preservation of non-local correlations between polarization-entangled photons when one of them traveled through brain tissue slices of different thicknesses. Using down-converted photons at a wavelength of 802 nm minimized the absorption by the tissue. After the light passed through the tissue samples, we performed quantum state tomography to obtain quantitative measures of the entanglement. We found that entanglement is preserved to a surprising degree, and when it degrades, it does so following a particular path in a tangle versus linear-entropy graph. Such a trajectory reveals direct transfer of probability from entangled to mixed state.
Conference Presentation
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Enrique J. Galvez, Lingyan Shi, and Robert R. Alfano "Nonlocal correlations of polarization-entangled photons through brain tissue (Conference Presentation)", Proc. SPIE 10060, Optical Biopsy XV: Toward Real-Time Spectroscopic Imaging and Diagnosis, 100600T (1 May 2017);

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