Quantum interference and non-locality of independent photons from disparate sources

R Wiegner (1) , * J von Zanthier (1) , G S Agarwal (2)

1 Institut für Optik, Information und Photonik
2 Department of Physics

We quantitatively investigate the non-classicality and non-locality of a whole new class of mixed disparate quantum and semiquantum photon sources at the quantum-classical boundary. The latter include photon added thermal and photon added coherent sources, experimentally investigated recently by Zavatta et al. [ Phys. Rev. Lett. 103, 140406 (2009) ]. The key quantity in our investigations is the visibility of the corresponding photon-photon correlation function. We present explicit results on the violations of the Cauchy-Schwarz inequality- which is a measure of nonclassicalityas well as of Bell-type inequalities.

Mots clés: Physical Sciences

R Wiegner, * J von Zanthier, G S Agarwal. Quantum interference and non-locality of independent photons from disparate sources. Journal of Physics B: Atomic, Molecular and Optical Physics, 2011, 44 (5), pp.55501. ⟨10.1088/0953-4075/44/5/055501⟩. ⟨hal-00600140⟩