On the quantum-channel capacity for orbital angular momentum-based free-space optical communications

Yequn Zhang, Ivan B Djordjevic, Xin Gao

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Inspired by recent demonstrations of orbital angular momentum-(OAM)-based single-photon communications, we propose two quantum-channel models: (i) the multidimensional quantum-key distribution model and (ii) the quantum teleportation model. Both models employ operator-sum representation for Kraus operators derived from OAM eigenkets transition probabilities. These models are highly important for future development of quantum-error correction schemes to extend the transmission distance and improve date rates of OAM quantum communications. By using these models, we calculate corresponding quantum-channel capacities in the presence of atmospheric turbulence.

Original languageEnglish (US)
Pages (from-to)3267-3269
Number of pages3
JournalOptics Letters
Issue number15
Publication statusPublished - Aug 1 2012


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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