Synthetic magnetism for photon fluids

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

Research output: Contribution to journalArticle

8 Scopus citations


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 (US)
Article number023805
JournalPhysical Review A
Issue number2
StatePublished - Aug 1 2016


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Westerberg, N., Maitland, C., Faccio, D., Wilson, K., Öhberg, P., & Wright, E. M. (2016). Synthetic magnetism for photon fluids. Physical Review A, 94(2), [023805].