Synthetic magnetism for photon fluids

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

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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 (US)
Article number023805
JournalPhysical Review A
Volume94
Issue number2
DOIs
StatePublished - Aug 1 2016

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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]. https://doi.org/10.1103/PhysRevA.94.023805