A dark point inside a wave of light sounds like a contradiction. It is also something researchers say they have now viewed in real time, moving so quickly that, by one measure, it outran light itself.

Physicists have directly tracked tiny points of darkness in laser light racing faster than light itself, without breaking Einstein’s rules. The new measurements show that these “dark points” in a ...

Physics fans are a lot like surfers. Both think waves are really fun. For surfers, it’s all about having a good time. For physicists, it’s about understanding some of nature’s most important physical ...

The control of matter motion at liquid–gas interfaces opens an opportunity to create two-dimensional materials with remotely tunable properties. In analogy with optical lattices used in ultra-cold ...

In their new experiment set-up, the Linköping researchers used photons moving forward in a circular motion, called orbital angular momentum, unlike the more common oscillating motion, which is up and ...

The program explores the nature of mechanical waves, questioning how they move and what creates them. It demonstrates wave motion through various experiments, including using a slinky and a wave ...

Scientists review research on gravitational wave detectors as a historical example of quantum technologies and examine the fundamental research on the connection between quantum physics and gravity.

Investigating the wave properties of matter with vibrating molecules Date: February 19, 2021 Source: Heinrich-Heine University Duesseldorf Summary: Researchers used a novel, high-precision laser ...

Gravitational waves are the last great prediction of general relativity to be directly observed. According to Einstein's theory of gravity, a mass in motion creates ripples in space and time. Ripples ...

Electron microscope image of the superfluid wave tank used in the experiments (blue) coupled to an optical fibre which brings laser light in and out of the device. The zoom-in shows the photonic ...