Study in Nature Confirms Superluminal 'Dark Points' in Light Waves

This article was prepared from the source material provided, which includes a summary of a Nature paper, an accompanying press release, and statements from corresponding author Ido Kaminer. No independent reporting or additional interviews were conducted.

An international team of researchers says it has observed "dark points" inside light waves moving faster than the speed of light, confirming a prediction first made in 1978 by British theoretical physicist Michael Berry. The findings were published in the journal Nature.

General relativity holds that faster-than-light transmission of mass or information is impossible because it would permit time travel and its associated paradoxes. But the vortices observed by the team carry no mass and transmit no information, so the researchers say they do not violate Einstein's laws.

The dark points are described as zero points where a light wave's amplitude drops to zero — small holes or vortices within the wave structure that can outpace their surroundings. A press release accompanying the work compared the effect to a vortex in a river overtaking the flow of water around it. "Until now, this was based on theory," the release stated.

How the vortices were captured

To record the movement in real time, the researchers used a modified high-speed electron microscope to capture moments lasting just three quadrillionths of a second. By stacking hundreds of images across many experiments, they assembled a timelapse showing the vortices colliding and, at times, exceeding the speed of light.

Corresponding author Ido Kaminer, an assistant professor at the Technion-Israel Institute of Technology, said the result points to broader laws. "Our discovery reveals universal laws of nature shared by all types of waves, from sound waves and fluid flows to complex systems such as superconductors," Kaminer said in a statement. He described the advance as a technological tool: the ability to map delicate nanoscale motion in materials through electron interferometry, a method that enhances image sharpness.

The work does not open the door to warp drives, according to the team. Its practical value lies in microscopy. "We believe these innovative microscopy techniques will enable the study of hidden processes in physics, chemistry, and biology, revealing for the first time how nature behaves in its fastest and most elusive moments," Kaminer said.