Resolution in rotation measurements

S M Barnett, R Zambrini

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


The limiting resolution in optical interferometry is set by the number of photons used, with the functional dependence determined by the state of light that is prepared. We consider the problem of measuring the rotation of a beam of light about an optical axis and show how the limiting resolution depends on the total number of quanta of orbital angular momentum carried by the light beam.

Original languageEnglish
Pages (from-to)613-625
Number of pages13
JournalJournal of Modern Optics
Issue number5-6
Publication statusPublished - 2006


  • orbital angular-momentum
  • squeezed light
  • quantum limits
  • laser beams
  • interferometer
  • noise


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