Synthetic magnetism for photon fluids

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

doi:10.1103/PhysRevA.94.023805

Synthetic magnetism for photon fluids

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

Physics

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17 Citations (Scopus)

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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 language	English
Article number	023805
Number of pages	8
Journal	Physical Review A
Volume	94
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.94.023805
Publication status	Published - 1 Aug 2016

Funding

We acknowledge valuable discussions with M. Valiente. D.F. acknowledges financial support from the European Research Council under the European Unions Seventh Framework Programme Grant No. (FP/2007-17172013)/ERC GA 306559 and EPSRC (U.K., Grant No. EP/J00443X/1). N.W. acknowledges support from the EPSRC CM-CDT Grant No. EP/L015110/1. P. Acknowledges support from EPSRC (U.K., Grant No. EP/M024636/1).

Keywords

photon fluids
Bogoliubov theory
magnetic fields

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10.1103/PhysRevA.94.023805

Westerberg-etal-PRA-2016-Synthetic-magnetism-for-photon-fluidsFinal published version, 494 KBLicence: Strath_1

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AU - Westerberg, N.

AU - Maitland, C.

AU - Faccio, D.

AU - Wilson, K.

AU - Öhberg, P.

AU - Wright, E. M.

PY - 2016/8/1

Y1 - 2016/8/1

N2 - 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.

AB - 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.

KW - photon fluids

KW - Bogoliubov theory

KW - magnetic fields

UR - https://researchportal.hw.ac.uk/en/publications/synthetic-magnetism-for-photon-fluids

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VL - 94

JO - Physical Review A

JF - Physical Review A

IS - 2

M1 - 023805

ER -

Synthetic magnetism for photon fluids

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