Orientational alignment in cavity quantum electrodynamics

Jonathan Keeling, Peter G. Kirton

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4 Citations (Scopus)


We consider the orientational alignment of dipoles due to strong matter-light coupling for a nonvanishing density of excitations. We compare various approaches to this problem in the limit of large numbers of emitters and show that direct Monte Carlo integration, mean-field theory, and large deviation methods match exactly in this limit. All three results show that orientational alignment develops in the presence of a macroscopically occupied polariton mode and that the dipoles asymptotically approach perfect alignment in the limit of high density or low temperature.

Original languageEnglish
Article number053836
Number of pages7
JournalPhysical Review A
Issue number5
Publication statusPublished - 29 May 2018


  • matter-light coupling
  • Monte Carlo integration
  • mean-field theory
  • large deviation methods

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