Spatio-temporal entanglement of twin photons: an intuitive picture

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

Research output: Contribution to journalArticle

3 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.

LanguageEnglish
Article number1461016
Number of pages12
JournalInternational Journal of Quantum Information
Volume12
Issue number2
DOIs
Publication statusPublished - 5 May 2014

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Quantum entanglement
Wave packets
wave packets
Photons
Crystals
output
photons
crystals

Keywords

  • quantum entanglement
  • Schmidt number
  • twin-photons

Cite this

Gatti, Alessandra ; Caspani, Lucia ; Corti, Tommaso ; Brambilla, Enrico ; Jedrkiewicz, Ottavia. / Spatio-temporal entanglement of twin photons : an intuitive picture. In: International Journal of Quantum Information. 2014 ; Vol. 12, No. 2.
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Spatio-temporal entanglement of twin photons : an intuitive picture. / Gatti, Alessandra; Caspani, Lucia; Corti, Tommaso; Brambilla, Enrico; Jedrkiewicz, Ottavia.

In: International Journal of Quantum Information, Vol. 12, No. 2, 1461016, 05.05.2014.

Research output: Contribution to journalArticle

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