Classical communication in the presence of quantum Gaussian noise

Jeffrey H. Shapiro, Brent J. Yen, Saikat Guha, Baris I. Erkmen

Research output: Contribution to journalConference articlepeer-review


The classical information capacity of channels that are subject to quantum Gaussian noise is studied. Recent work has established the capacity of the pure-loss channel, as well as bounds on and a conjecture for the capacity of the lossy channel with isotropic-Gaussian excess noise. This work is applied to the pure-loss free-space channel that uses multiple Hermite-Gaussian (HG) or Laguerre-Gaussian (LG) spatial modes to communicate between soft-aperture transmit and receive pupils, and to the lossy channel with anisotropic (colored) Gaussian noise.

Original languageEnglish (US)
Article number10
Pages (from-to)63-73
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2005
EventFluctuations and Noise in Photonics and Quantum Optics III - Austin, TX, United States
Duration: May 24 2005May 26 2005


  • Channel capacity
  • Hermite-Gaussian modes
  • Laguerre-Gaussian modes
  • Quantum Gaussian noise

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 'Classical communication in the presence of quantum Gaussian noise'. Together they form a unique fingerprint.

Cite this