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Physicists Harness Twisted Mathematics to Make Powerful Laser

Etched loops on topological surface

By channelling light waves through etched loops on a topological surface, researchers have produced laser light (artist's illustration).

Credit: S. Wittek & M.A. Bandres

Researchers have exploited the twisty nature of topological physics to produce a high-quality beam of laser light—a step that could lead to the first practical application of this burgeoning field.

From Nature
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