Photon polarization entanglement induced by biexciton: Experimental evidence for violation of Bell's inequality

Goro Oohata, Ryosuke Shimizu, Keiichi Edamatsu

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number140503
JournalPhysical review letters
Volume98
Issue number14
DOIs
Publication statusPublished - 2007 Apr 3

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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