articleNew Journal of PhysicsMar 20, 2015GOLD OA

High-dimensional quantum cryptography with twisted light

MMMohammad MirhosseiniOSOmar S Magaña-LoaizaMNMalcolm N O’SullivanBRBrandon RodenburgMMMehul Malik

University of Rochester · Institute for Quantum Optics and Quantum Information Innsbruck · +4 more institutions

Indexed inarxivcrossrefdoaj

Abstract

Quantum key distribution (QKD) systems often rely on polarization of light for encoding, thus limiting the amount of information that can be sent per photon and placing tight bounds on the error rates that such a system can tolerate. Here we describe a proof-of-principle experiment that indicates the feasibility of high-dimensional QKD based on the transverse structure of the light field allowing for the transfer of more than 1 bit per photon. Our implementation uses the orbital angular momentum (OAM) of photons and the corresponding mutually unbiased basis of angular position (ANG). Our experiment uses a digital micro-mirror device for the rapid generation of OAM and ANG modes at 4 kHz, and a mode sorter…

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Authors

9
  • MM
    Mohammad MirhosseiniCorresponding

    University of Rochester

  • OS
    Omar S Magaña-Loaiza

    University of Rochester

  • MN
    Malcolm N O’Sullivan

    University of Rochester

  • BR
    Brandon Rodenburg

    University of Rochester

  • MM
    Mehul Malik

    Institute for Quantum Optics and Quantum Information Innsbruck, Austrian Academy of Sciences, University of Rochester

Topics & keywords

Topics
Keywords
  • Quantum key distribution
  • Photon
  • Eavesdropping
  • Quantum cryptography
  • Quantum channel
  • Polarization (electrochemistry)
  • Quantum information
  • Quantum information science
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