Physicists Are Reinventing the Laser

Physicists Are Reinventing the Laser (via Qpute.com)

[ad_1] Illustration: Benjamin Currie/GizmodoIn the 1950s, when physicists were racing to invent the first laser, they found that the rules of quantum mechanics restricted how pure the color of their light could be. Since then,…

Laser loop couples quantum systems over a distance…

[ad_1] For the first time, researchers have succeeded in creating strong coupling between quantum systems over a greater distance. They accomplished this with a novel method in which a laser loop connects the systems, enabling…

Laser loop couples quantum systems over a distance…

[ad_1] A loop of laser light connects the oscillations of a nanomechanical membrane and the spin of a cloud of atoms. Credit: University of Basel, Department of Physics For the first time, researchers have succeeded…

Bubbles of positronium in liquid helium could make…

[ad_1] In this schematic, "seed photons" from spontaneous annihilation of a few positronium atoms stimulate subsequent annihilations, resulting in a coherent pulse of 511-keV gamma rays.JQI/ScheweFive years ago, we covered a "pie-in-the-sky" theoretical conjecture by…

Gamma-ray laser moves a step closer to reality…

[ad_1] Allen Mills is a professor in the UC Riverside Department of Physics and Astronomy. Credit: I. Pittalwala, UC Riverside. A physicist at the University of California, Riverside, has performed calculations showing hollow spherical bubbles…