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Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Generation of entangled photons from biexcitons in a semiconductor

Goro Oohata, Keiichi Edamatsu

Published Jan 11, 2005• 0 citations
Publisher

Abstract

We demonstrate the first experimental realization of the entangled photon pair generation via biexciton-resonant hyper parametric scattering in CuCl crystal. Polarization correlation measurements and quantum tomographic analysis shows that the generated photon pairs have high degrees of polarization entanglement.
DOI
10.1117/12.605339

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We have investigated the polarization entanglement between photon pairs generated from a biexciton in a CuCl single crystal via resonant hyperparametric scattering. The pulses of a high repetition pump are seen to provide improved statistical accuracy and the ability to test Bell's inequality. Our results clearly violate the inequality and thus manifest the quantum entanglement and nonlocality of the photon pairs. We also analyzed the quantum state of our photon pairs using quantum state tomography.
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