Scientists discover fundamental property of light – 150 years after Maxwell

Physics Today

Light's spin Hall effect was first observed in 2008. Now its quantum version has been demonstrated. Like its electronic counterpart, light's quantum spin Hall effect is intrinsically topological in nature.

Scientists discover fundamental property of light – 150 years after Maxwell

Suprising discovery of fundamental property of light could lead to applications in optical communications, metrology and quantum information processing

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