Super-dense teleportation for space applications

Chris Zeitler, Trent M. Graham, Joseph Chapman, Herbert Bernstein, Paul G Kwiat

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

Abstract

Establishing a quantum communication network would provide advantages in areas such as security and information processing. Such a network would require the implementation of quantum teleportation between remote parties. However, for photonic «qudits» of dimension greater than two, this teleportation always fails due to the inability to carry out the required quantum Bell-state measurement. A quantum communication protocol called Superdense Teleportation (SDT) can allow the reconstruction of a state without the usual 2-photon Bell-state measurements, enabling the protocol to succeed deterministically even for high dimensional qudits. This technique restricts the class of states transferred to equimodular states, a type of superposition state where each term can differ from the others in phase but not in amplitude; this restricted space of transmitted states allows the transfer to occur deterministically. We report on our implementation of SDT using photon pairs that are entangled in both polarization and temporal mode. After encoding the phases of the desired equimodular state on the signal photon, we perform a complete tomography on the idler photon to verify that we properly prepared the chosen state. Beyond our tabletop demonstration, we are working towards an implementation between a space platform in low earth orbit and a ground telescope, to demonstrate the feasibility of space-based quantum communication. We will discuss the various challenges presented by moving the experiment out of the laboratory, and our proposed solutions to make Superdense Teleportation realizable in the space setting.

Original languageEnglish (US)
Title of host publicationFree-Space Laser Communication and Atmospheric Propagation XXVIII
EditorsDon M. Boroson, Hamid Hemmati
PublisherSPIE
ISBN (Electronic)9781628419740
DOIs
StatePublished - Jan 1 2016
EventFree-Space Laser Communication and Atmospheric Propagation XXVIII - San Francisco, United States
Duration: Feb 15 2016Feb 16 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9739
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherFree-Space Laser Communication and Atmospheric Propagation XXVIII
Country/TerritoryUnited States
CitySan Francisco
Period2/15/162/16/16

Keywords

  • Superdense teleportation
  • entanglement
  • multimode detection
  • quantum communication
  • space

ASJC Scopus subject areas

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

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