Physicists have finally watched positronium, a short‑lived atom made of an electron and its antimatter twin, behave like a rippling quantum wave instead of a tiny billiard ball. In a set of ...

A new theoretical study led by researchers at the University of Chicago and Argonne National Laboratory has identified the ...

One of the 100 GHz microresonator chips that lies at the heart of the novel lidar architecture. (Courtesy: Johann Riemensberger) In today’s fast-changing world, we are continuously upgrading our ...

Some of the X-ray radiation circulating in the cavity is allowed to escape downstream, providing a beam of monochromatic and coherent X-ray pulses. They have called their system X-ray Free-Electron ...

Gaps in the coherence spectrum of diode lasers have been known to hinder research. Anselm Deninger and Thomas Renner look at how these gaps are being filled and the applications that are benefiting ...