An international research collaboration from Poland, the UK and Russia has created a two-dimensional system—a thin optical cavity filled with liquid crystal—in which they trapped photons. As the properties of the cavity were modified by an external voltage, the photons behaved like massive quasiparticles endowed with a magnetic moment, called “spin,” under the influence of an artificial magnetic field. The research has been published in Science on Friday, 8 November 2019.
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Source: Phys.org