caa a22 4500 528785958 20190713030955.0 cr unu---uuuuu 180924s2017 xx s 000 0 eng 10.3929/ethz-b-000128793 doi 10.1038/ncomms14540 doi (ETHRESEARCH)oai:www.research-collection.ethz.ch:20.500.11850/128793 Electrically tunable artificial gauge potential for polaritons [Elektronische Daten] [Hyang-Tag Lim, Emre Togan, Martin Kroner, Javier Miguel-Sanchez, Atac Imamoglu] Nat Commun Open access ethresearch 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 tunable artificial gauge potential for two-dimensional microcavity exciton polaritons. For verification, we perform interferometric measurements 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. Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0 ethresearch Lim Hyang-Tag joint author Togan Emre joint author Kroner Martin joint author Miguel-Sanchez Javier joint author Imamoglu Atac joint author Nature Communications London : Nature Publishing Group 8, p. 14540 2041-1723 http://hdl.handle.net/20.500.11850/128793 text/html WWW-Backlink auf das Repository (Open access) 1 Journal Article ethresearch ETHRESEARCH 856 40 http://hdl.handle.net/20.500.11850/128793 text/html WWW-Backlink auf das Repository (Open access) ETHRESEARCH 700 1- Lim Hyang-Tag joint author ETHRESEARCH 700 1- Togan Emre joint author ETHRESEARCH 700 1- Kroner Martin joint author ETHRESEARCH 700 1- Miguel-Sanchez Javier joint author ETHRESEARCH 700 1- Imamoglu Atac joint author ETHRESEARCH 773 0- Nature Communications London : Nature Publishing Group 8, p. 14540 2041-1723 BK010053 XK010053 XK010000 ETHRESEARCH ETHRESEARCH ETHRESEARCH Journal Article Open access