Synthetic magnetism for photon fluids

N. Westerberg, C. Maitland, D. Faccio, K. Wilson, P. Öhberg, E. M. Wright

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)
5 Downloads (Pure)

Abstract

We develop a theory of artificial gauge fields in photon fluids for the cases of both second-order and third-order optical nonlinearities. This applies to weak excitations in the presence of pump fields carrying orbital angular momentum and is thus a type of Bogoliubov theory. The resulting artificial gauge fields experienced by the weak excitations are an interesting generalization of previous cases and reflect the PT-symmetry properties of the underlying non-Hermitian Hamiltonian. We illustrate the observable consequences of the resulting synthetic magnetic fields for examples involving both second-order and third-order nonlinearities.

Original languageEnglish
Article number023805
Number of pages8
JournalPhysical Review A
Volume94
Issue number2
DOIs
Publication statusPublished - 1 Aug 2016

Keywords

  • photon fluids
  • Bogoliubov theory
  • magnetic fields

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