Hyperentanglement for advanced quantum communication

Julio T. Barreiro, Paul G. Kwiat

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Quantum entanglement is known to enable otherwise impossible feats in various communication protocols, such as quantum key distribution and super-dense coding. Here we describe efforts to further enhance the usual benefits, by incorporating quantum states that are simultaneously entangled in multiple degrees of freedom - "hyperentangled". Via the process of spontaneous parametric down conversion, we have demonstrated photon pairs simultaneously entangled in polarization and spatial mode, and have used these to realize remote entangled state preparation, full polarization Bell-state analysis, and the highest reported capacity quantum dense coding.

Original languageEnglish (US)
Title of host publicationQuantum Communications and Quantum Imaging VI
StatePublished - 2008
EventQuantum Communications and Quantum Imaging VI - San Diego, CA, United States
Duration: Aug 12 2008Aug 14 2008

Publication series

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


OtherQuantum Communications and Quantum Imaging VI
Country/TerritoryUnited States
CitySan Diego, CA


  • Entanglement
  • Hyperentanglement
  • Quantum communication

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Hyperentanglement for advanced quantum communication'. Together they form a unique fingerprint.

Cite this