Scientists discover the existence of 4D, one more invisible 'spatial dimension'

Even though we cannot physically access the 4D world, being aware of its existence will pave the way to future discoveries and a better understanding of our Universe.

Light-matter interplay probed: Physicists achieve quantum Hall state with light

Harnessing the shared wave nature of light and matter, researchers have used light to explore some of the most intriguing questions in the quantum mechanics of materials.