One of the discoveries that fundamentally distinguished the emerging field of quantum physics from classical physics was the ...

For the first time, physicists have watched a beam of positronium, a short‑lived atom made of an electron and its antimatter ...

An international research group has now made significant progress in the further development of compact plasma accelerators, considered a promising technology for the future: With two complementary ...

There is no measurement that can directly observe the wave function of a quantum mechanical system, but the wave function is ...

The particle-wave nature of light has fascinated researchers for more than 200 years, but a new experiment has allowed researchers to visualize it like never before. This image was taken by turning an ...

In 1905, Albert Einstein provided an explanation of the photoelectric effect – that various metals emit electrons when light is shined on them – by suggesting that a beam of light is not simply a wave ...

Classically, light can be thought of in two ways: either as a particle or a wave. But what is it really? Well, the ‘observer effect’ makes that question kind of difficult to answer. So before we get ...

Light is well known to exhibit both wave-like and particle-like properties, as imaged here in this 2015 photograph. What's less well appreciated is that matter particles also exhibit those wave-like ...

For the first time, researchers from Tokyo University of Science have observed wave-like interference patterns from ...