Optical amplifier-powered quantum optical amplification

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Abstract

I show that an optical amplifier, when combined with photon subtraction, can be used for quantum state amplification, adding noise at a level below the standard minimum. The device could be used to significantly decrease the probability of incorrectly identifying coherent states chosen from a finite set.

Original languageEnglish
Article number053818
Number of pages4
JournalPhysical Review A
Volume83
Issue number5
DOIs
Publication statusPublished - 11 May 2011

Keywords

  • raman amplifier
  • noise
  • states

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