Category Physics

New State of Matter in One-Dimensional Quantum Gas

Experimental physicists have made a unique, one-dimensional quantum gas system that remains unusually stable as it’s pumped up to higher energy states. The researchers compare it to water being transported up an Archimedes’ screw. (Image credit: Getty Images)

By adding some magnetic flair to an exotic quantum experiment, physicists produced an ultra-stable one-dimensional quantum gas with never-before-seen ‘scar’ states – a feature that could someday be useful for securing quantum information.

As the story goes, the Greek mathematician and tinkerer Archimedes came across an invention while traveling through ancient Egypt that would later bear his name. It was a machine consisting of a screw housed inside a hollow tube that trapped and drew water upon rotation...

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Quasar discovery sets New Distance record

Artist’s conception of the quasar J0313–1806, seen as it was only 670 million years after the Big Bang.
Credit: NOIRLab/NSF/AURA/J. da Silva

An international team of astronomers has discovered the most distant quasar yet found — a cosmic monster more than 13 billion light-years from Earth powered by a supermassive black hole more than 1.6 billion times more massive than the Sun and more than 1,000 times brighter than our entire Milky Way Galaxy.

The quasar, called J0313-1806, is seen as it was when the Universe was only 670 million years old and is providing astronomers with valuable insight on how massive galaxies — and the supermassive black holes at their cores — formed in the early Universe...

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Pivotal discovery in Quantum and Classical Information processing

Tuned photon-magnon interactions. The team’s device is in the center. Arrow indicates direction of spin excitation for magnons. The purplish shroud represents reflectance measurements. The separated darker lines on each side that intersect at the top indicate tunable strong photon-magnon coupling. (Image by Argonne National Laboratory.)
Tuned photon-magnon interactions. The team’s device is in the center. Arrow indicates direction of spin excitation for magnons. The purplish shroud represents reflectance measurements. The separated darker lines on each side that intersect at the top indicate tunable strong photon-magnon coupling. (Image by Argonne National Laboratory.)

Researchers have achieved, for the first time, electronically adjustable interactions between microwaves and a phenomenon in certain magnetic materials called spin waves. This could have application in quantum and classical information processing.

Working with theorists in the University of Chicago’s Pritzker School of Molecular Engineering, researchers in the U.S...

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Engineers create Hybrid Chips with Processors and Memory to run AI on Battery-powered devices

A digital rendering of a computer chip illuminated
Hardware and software innovations give eight chips the illusion that they’re one mega-chip working together to run AI. | Stocksy/Javier Pardina

Transactions between processors and memory can consume 95% of the energy needed to do machine learning and AI, which severely limits battery life. A team of engineers has designed a system that can run AI tasks faster, and with less energy, by harnessing eight hybrid chips, each with its own data processor built right next to its own memory storage.

Smartwatches and other battery-powered electronics would be even smarter if they could run AI algorithms...

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