Hyperentanglement for quantum telecommunications

Nicholas A. Peters, Anjali Agarwal, Thomas E. Chapuran, Paul Toliver

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

Abstract

We describe how hyperentanglement may be used to give orders of magnitude throughput improvement over singly entangled photon pairs, for some applications. Next we demonstrate the first measurement of hyperentangled photon pairs, both of which are at telecom wavelengths, via simultaneous polarization tomography and time-bin interference measurements. Without cryogenic cooling of the nonlinear element, we measure polarization entanglement with tangle of 0.4 ± 0.2 and time bin entanglement with visibility of 83% ± 6%, both exceeding classical thresholds by approximately two standard deviations.

Original languageEnglish
Title of host publicationAdvanced Photon Counting Techniques VII
DOIs
StatePublished - 2013
Externally publishedYes
EventAdvanced Photon Counting Techniques VII - Baltimore, MD, United States
Duration: May 1 2013May 2 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8727
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceAdvanced Photon Counting Techniques VII
Country/TerritoryUnited States
CityBaltimore, MD
Period05/1/1305/2/13

Keywords

  • Chi-3
  • Hyperentanglement
  • Nonlinear optics
  • Single photon counting

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