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Electrically tunable artificial gauge potential for polaritons

Authors :
Lim, Hyang-Tag
Togan, Emre
Kroner, Martin
Miguel-Sanchez, Javier
Imamoglu, Atac
Source :
Nature Communications 8, 14540 (2017)
Publication Year :
2016

Abstract

Neutral particles subject to artificial gauge potentials can behave as charged particles in magnetic fields. This fascinating premise has led to demonstrations of one-way waveguides, topologically protected edge states and Landau levels for photons. In ultracold neutral atoms effective gauge fields have allowed the emulation of matter under strong magnetic fields leading to realization of Harper-Hofstadter and Haldane models. Here we show that application of perpendicular electric and magnetic fields effects a tuneable artificial gauge potential for two-dimensional microcavity exciton polaritons. For verification, we perform interferometric measurement of the associated phase accumulated during coherent polariton transport. Since the gauge potential originates from the magnetoelectric Stark effect, it can be realized for photons strongly coupled to excitations in any polarizable medium. Together with strong polariton- polariton interactions and engineered polariton lattices, artificial gauge fields could play a key role in investigation of non-equilibrium dynamics of strongly correlated photons.<br />Comment: 12 pages, 3 figures. Supplementary information

Details

Database :
arXiv
Journal :
Nature Communications 8, 14540 (2017)
Publication Type :
Report
Accession number :
edsarx.1610.07358
Document Type :
Working Paper
Full Text :
https://doi.org/10.1038/ncomms14540