Scientists at the University of Birmingham have accomplished a new feat in physics. They managed to create an experimental model of a rather peculiar type of particle in a beam of light. It is elusive fundamental particles named « skyrmions ». This breakthrough now allows physicists to have a concrete system for studying the behavior of skyrmions.
Formerly, the mathematical physicist of the University of Birmingham Tony Skyrme had already undertaken research and proposed ideas in this direction. According to the Skyrme analogy, one should use the structure spheres in a 4-dimensional space in order to guarantee the indivisible nature of a 3d skyrmion particle.
The skyrmions are supposed to provide essential information on the origins of the universe, on the physics of exotic materials and cold atoms. The study of these particles had begun for over 50 years, without conclusive results.
A new way to analyze skyrmions in 3D
Previous research on skyrmions has taken place in 2-dimensional spaces. Although promising for new technologies, these arrangements have been unsatisfactory. The new study, published in Nature Communication, demonstrated how skyrmions could be measured in three dimensions.
This is a first in physics for 60 years. We have to believe that the international collaboration between researchers from the University of Birmingham, Lancaster, Münster (Germany) and RIKEN (Japan) has been fruitful.
A new modeling system in sight
In order to create their model, Dr Danica Sugic and Professor Dennis performed a standard description of light and polarization. They also used the nature of spheres in 4-dimensional space for modeling. This then made it possible to design and integrate the Skyrmion field into a laser light beam in an experiment led by Professor Cornelia Denz, from the University of Münster.
“We realized that a beam of light could be harnessed for this purpose, because we are able to tightly control its properties, and therefore use it as a platform to model our skyrmions. With this approach, we can begin to truly understand these objects and realize their scientific potential. “
Mark Dennis, lead research author
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Source From: Fredzone
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