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arXiv · 1401.7364

Spatio-temporal entanglement of twin photons: an intuitive picture

Alessandra Gatti·Lucia Caspani·Tommaso Corti·Enrico Brambilla·Ottavia Jedrkiewicz
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Abstract

We draw an intuitive picture of the spatio-temporal properties of the entangled state of twin photons, where they are described as classical wave-packets. This picture predicts a precise relation between their temporal and transverse spatial separations at the crystal output. The space-time coupling described by classical arguments turns out to determine in a precise way the spatio-temporal structure of the quantum entanglement, analysed by means of the biphotonic correlation and of the Schmidt dimensionality of the entanglement.

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Alessandra Gatti, Lucia Caspani, Tommaso Corti, Enrico Brambilla, Ottavia Jedrkiewicz. 2014-01-28. Spatio-temporal entanglement of twin photons: an intuitive picture. https://doi.org/10.1142/s0219749914610164

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