Searching for Interstellar Quantum Communications

  title={Searching for Interstellar Quantum Communications},
  author={Michael Hippke},
  journal={The Astronomical Journal},
  • M. Hippke
  • Published 13 April 2021
  • Physics
  • The Astronomical Journal
The modern search for extraterrestrial intelligence began with the seminal publications of Cocconi & Morrison and Schwartz & Townes, who proposed searching for narrowband signals in the radio spectrum and optical laser pulses. Over the last six decades, more than 100 dedicated search programs have targeted these wavelengths, all with null results. All of these campaigns searched for classical communications, that is, for a significant number of photons above a noise threshold, with the… 
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