Stevens Institute, Hoboken, reports the universal identity P²+K²=1, uniting polarization with entanglement across setups and ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

Physicists from Trinity College Dublin believe new insights into the behavior of light may offer a new means of solving one ...

Shaped quantum light is turning ordinary photons into powerful tools for the future of technology.

This video explores a physics thought experiment about extreme speed and energy, explaining what science says would happen ...

Controlling light is an important technological challenge—not just at the large scale of optics in microscopes and telescopes ...

Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

Light is usually described using quantum mechanics when phenomena like entanglement enter the picture. But a new paper shows ...

New device could be used to observe structures as small as individual proteins, as well as the environment in which they move ...

Scientists are learning to engineer light in rich, multidimensional ways that dramatically increase how much information a ...

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Tiny 3D-printed “light cages” are giving researchers a new way to catch and hold individual particles of light on a chip, a ...