Vacuum fluctuations and the conditional homodyne detection of squeezed light

H. J. Carmichael, Hyunchul Nha

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4 Citations (Scopus)


Conditional homodyne detection of quadrature squeezing is compared with standard nonconditional detection. Whereas the latter identifies nonclassicality in a quantitative way, as a reduction of the noise power below the shot noise level, conditional detection makes a qualitative , distinction between vacuum state squeezing and squeezed classical noise. Implications of this comparison for the realistic interpretation of vacuum fluctuations (stochastic electrodynamics) are discussed.

Original languageEnglish
Pages (from-to)S645-S651
JournalJournal of Optics B: Quantum and Semiclassical Optics
Issue number8
Publication statusPublished - 1 Aug 2004



  • Conditional homodyne detection
  • Quadrature squeezing
  • Shot noise
  • Vacuum fluctuations

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

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