Quantum Receivers for Entanglement Assisted Classical Optical Communications

Research output: Contribution to journalArticlepeer-review

Abstract

Entanglement assisted (EA) communication represents an interesting alternative to classical communication, in particular in low-brightness and highly noisy regime when it outperforms significantly corresponding classical counterpart in terms of the channel capacity. Even though that the EA capacity is known for decades the optimum quantum receiver has not been determined yet. In this paper, we propose several low-complexity quantum receivers outperforming recently proposed receivers employing the optical parametric amplifier as a basic building block. We demonstrate by simulations that the capacity of the proposed EA schemes, employing Gaussian modulation and the proposed low-complexity joint receivers, can significantly outperform both the Holevo capacity and classical homodyne and heterodyne channel capacities.

Original languageEnglish (US)
Article number9416745
JournalIEEE Photonics Journal
Volume13
Issue number3
DOIs
StatePublished - Jun 2021

Keywords

  • Holevo capacity
  • Quantum communication
  • Shannon capacity
  • classical communication
  • entanglement
  • entanglement assisted capacity
  • joint quantum receivers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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