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arXiv · 1112.4371

Experimental tomography of NOON states with large photon numbers

Yonatan Israel·Itai Afek·Shamir Rosen·Oron Ambar·Yaron Silberberg
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Abstract

We have performed experimental quantum state tomography of NOON states with up to four photons. The measured states are generated by mixing a classical coherent state with spontaneous parametric down-conversion. We show that this method produces states which exhibit a high fidelity with ideal NOON states. The fidelity is limited by the overlap of the two-photon down-conversion state with any two photons originating from the coherent state, for which we introduce and measure a figure of merit. A second limitation on the fidelity set by the total setup transmission is discussed. We also apply the same tomography procedure for characterizing correlated photon hole states.

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Yonatan Israel, Itai Afek, Shamir Rosen, Oron Ambar, Yaron Silberberg. 2015-06-30. Experimental tomography of NOON states with large photon numbers. https://doi.org/10.1103/physreva.85.022115

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