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arXiv · 0909.5288

On the discrimination between classical and quantum states

G. Brida·M. Bondani·I. P. Degiovanni·M. Genovese·M. G. A. Paris·I. Ruo Berchera·V. Schettini
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Abstract

With the purpose to introduce a useful tool for researches concerning foundations of quantum mechanics and applications to quantum technologies, here we study three quantumness quantifiers for bipartite optical systems: one based on sub-shot-noise correlations, one related to antibunching and one springing from entanglement determination. The specific cases of parametric down conversion seeded by thermal, coherent and squeezed states are discussed in detail.

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G. Brida, M. Bondani, I. P. Degiovanni, M. Genovese, M. G. A. Paris, I. Ruo Berchera, V. Schettini. 2009-09-29. On the discrimination between classical and quantum states. https://doi.org/10.1007/s10701-009-9396-4

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