Researchers at Aalto University in Finland have demonstrated how the principles of general relativity can open a pathway to novel electronic applications such as a three-dimensional electron lens and electronic invisibility devices.
The researchers have proposed a new method to go beyond special relativity and simulate Einstein's theory of general relativity in inhomogeneous Weyl semimetals, a hypothesis that combines ideas from solid-state physics, particle physics, and cosmology and leads to the fabrication of metallic designer materials in which charge carriers move in the manner of particles in curved space-time.
The researchers propose Weyl metamaterials, a generalization of Weyl semimetals that enable new types of electronic devices through geometry engineering.
"The systems we introduced offer a route to make the charge carriers move as if they were living in a curved geometry, providing a tabletop laboratory for simulating curved-space quantum physics and certain cosmological phenomena," says Aalto University researcher Alex Weststrom.
From Academy of Finland
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