Spatio-temporal entanglement of twin photons: An intuitive picture

Alessandra Gatti; Lucia Caspani; Tommaso Corti; Enrico Brambilla; Ottavia Jedrkiewicz

doi:10.1142/S0219749914610164

Spatio-temporal entanglement of twin photons: An intuitive picture

Alessandra Gatti^*, Lucia Caspani, Tommaso Corti, Enrico Brambilla, Ottavia Jedrkiewicz

^*Corresponding author for this work

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

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, analyzed by means of the biphotonic correlation and of the Schmidt dimensionality of the entanglement.

Original language	English
Article number	1461016
Number of pages	12
Journal	International Journal of Quantum Information
Volume	12
Issue number	2
DOIs	https://doi.org/10.1142/S0219749914610164
Publication status	Published - Mar 2014

Keywords

Quantum entanglement
Schmidt number
twin-photons

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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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, analyzed by means of the biphotonic correlation and of the Schmidt dimensionality of the entanglement.",

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AU - Gatti, Alessandra

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AU - Brambilla, Enrico

AU - Jedrkiewicz, Ottavia

PY - 2014/3

Y1 - 2014/3

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AB - 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, analyzed by means of the biphotonic correlation and of the Schmidt dimensionality of the entanglement.

KW - Quantum entanglement

KW - Schmidt number

KW - twin-photons

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Spatio-temporal entanglement of twin photons: An intuitive picture

Abstract

Keywords

ASJC Scopus subject areas

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