Quantum (Page 2)

Scientists at the U. S. Department of Energy Ames National Laboratory and Iowa State University have discovered an unexpected “quantum echo” in a superconducting material. This discovery provides insight into quantum behaviors that could be used for next-generation quantum sensing and computing technologies. Superconductors are materials that carry electricity withoutContinue Reading

In a first-of-its-kind experiment, engineers at the University of Pennsylvania brought quantum networking out of the lab and onto commercial fiber-optic cables using the same Internet Protocol (IP) that powers today’s web. Reported in Science, the work shows that fragile quantum signals can run on the same infrastructure that carriesContinue Reading

Toxic metals are pushing infrared detector makers into a corner, but NYU Tandon researchers have developed a cleaner solution using colloidal quantum dots. These detectors are made like “inks,” allowing scalable, low-cost production while showing impressive infrared sensitivity. Combined with transparent electrodes, the innovation tackles major barriers in imaging systemsContinue Reading

Unlike conventional phases of matter, the so-called non-equilibrium quantum phases are defined by their dynamical and time-evolving properties — a behavior that cannot be captured by traditional equilibrium thermodynamics. One particularly rich class of non-equilibrium states arises in Floquet systems — quantum systems that are periodically driven in time. ThisContinue Reading

A plucked guitar string can vibrate for seconds before falling silent. A playground swing, emptied of its passenger, will gradually come to rest. These are what physicists call “damped harmonic oscillators” and are well understood in terms of Newton’s laws of motion. But in the tiny world of atoms, thingsContinue Reading