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arXiv · 1605.03788

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.

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N. Westerberg, C. Maitland, D. Faccio, K. Wilson, P. Öhberg, E. M. Wright. 2016-08-02. Synthetic magnetism for photon fluids. https://doi.org/10.1103/physreva.94.023805

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