Spatio-temporal entanglement of twin photons

An intuitive picture

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

Research output: Contribution to journalArticle

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 languageEnglish
Article number1461016
Number of pages12
JournalInternational Journal of Quantum Information
Volume12
Issue number2
DOIs
Publication statusPublished - Mar 2014

Fingerprint

wave packets
output
photons
crystals

Keywords

  • Quantum entanglement
  • Schmidt number
  • twin-photons

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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.
@article{10bf23d8b64042f49222151ed437b675,
title = "Spatio-temporal entanglement of twin photons: An intuitive picture",
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.",
keywords = "Quantum entanglement, Schmidt number, twin-photons",
author = "Alessandra Gatti and Lucia Caspani and Tommaso Corti and Enrico Brambilla and Ottavia Jedrkiewicz",
year = "2014",
month = "3",
doi = "10.1142/S0219749914610164",
language = "English",
volume = "12",
journal = "International Journal of Quantum Information",
issn = "0219-7499",
publisher = "World Scientific Publishing",
number = "2",

}

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, 03.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Spatio-temporal entanglement of twin photons

T2 - An intuitive picture

AU - Gatti, Alessandra

AU - Caspani, Lucia

AU - Corti, Tommaso

AU - Brambilla, Enrico

AU - Jedrkiewicz, Ottavia

PY - 2014/3

Y1 - 2014/3

N2 - 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.

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

UR - http://www.scopus.com/inward/record.url?scp=84901626833&partnerID=8YFLogxK

U2 - 10.1142/S0219749914610164

DO - 10.1142/S0219749914610164

M3 - Article

VL - 12

JO - International Journal of Quantum Information

JF - International Journal of Quantum Information

SN - 0219-7499

IS - 2

M1 - 1461016

ER -