Thursday, February 19, 2026
Thursday, February 19, 2026
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crystals

Lasers fired at crystals could uncover quantum nature of the vacuum

The Daily Observer London Desk: Reporter- John Furner The vacuum is not as empty as it might appear ElessarDesign/Shutterstock We may be able to harvest the quantum...

Photonic time crystals could open the door to a new branch of optics

The Daily Observer London Desk: Reporter- John Furner Refractive index—the ratio of the speed of electromagnetic radiation in a medium to its speed in a...

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