Time-domain balanced homodyne detection is performed on two well-separated temporal modes sharing a single photon. The reconstructed density matrix of the two-mode system is used to prove and quantify its entangled nature, while theWigner function is employed for an innovative tomographic test of Bell s inequality based on the theoretical proposal by Banaszek and Wodkiewicz (Phys. Rev. Lett. 82, pp.2009 1999). Provided some auxiliary assumptions are made, a clear violation of the Banaszek-Bell inequality is found.
Tomographic test of Bell's inequality for a time-delocalized single photon
Zavatta A;Bellini M
2006
Abstract
Time-domain balanced homodyne detection is performed on two well-separated temporal modes sharing a single photon. The reconstructed density matrix of the two-mode system is used to prove and quantify its entangled nature, while theWigner function is employed for an innovative tomographic test of Bell s inequality based on the theoretical proposal by Banaszek and Wodkiewicz (Phys. Rev. Lett. 82, pp.2009 1999). Provided some auxiliary assumptions are made, a clear violation of the Banaszek-Bell inequality is found.File in questo prodotto:
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Descrizione: Tomographic test of Bell's inequality for a time-delocalized single photon
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