Generating non-classical correlations between photons and spins in a crystal

Jean Etesse*, Cyril Laplane, Pierre Jobez, Nicolas Gisin, Mikael Afzelius

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

1 Citation (Scopus)

Abstract

We perform the experimental generation of pairs of photons on a solid-state rare-earth ion doped crystal of Eu3+:Y2SiO5, by using a DLCZ-like protocol designed for inhomogeneously broadened media. The idea relies on the use of the atomic frequency comb technique, in order to rephase the atoms for the emission of the photons. A specificity of this protocol is its high temporal multimode capacity, as many pairs of photons can be emitted at different instants in time. A Cauchy-Schwarz inequality violation of 2.88>1 is witnessed, proving the non-classical correlations of the photon pairs that we produce. A detailed analysis of the source and detection imperfections is conducted, revealing ways of increasing the quality of the pairs that are produced.

Original languageEnglish
Title of host publicationAdvances in Photonics of Quantum Computing, Memory, and Communication XI
EditorsZameer Ul Hasan, Philip R. Hemmer, Alan E. Craig, Alan L. Migdall
Place of PublicationBellingham, WA
PublisherSPIE
Number of pages9
ISBN (Electronic)9781510615809
ISBN (Print)9781510615793
DOIs
Publication statusPublished - 22 Feb 2018
Externally publishedYes
EventAdvances in Photonics of Quantum Computing, Memory, and Communication XI 2018 - San Francisco, United States
Duration: 29 Jan 201831 Jan 2018

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume10547
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceAdvances in Photonics of Quantum Computing, Memory, and Communication XI 2018
Country/TerritoryUnited States
CitySan Francisco
Period29/01/1831/01/18

Keywords

  • Atomic ensembles
  • DLCZ protocol
  • Quantum memories
  • Quantum repeater
  • Rare-earth ion doped crystal

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