Search results for dirac

General Physics Nov 28, 2023

LHCb: Correlations show nuances of the particle birth process

High-energy ion collisions at the Large Hadron Collider are capable of producing a quark-gluon plasma. But are heavy atomic nuclei really necessary for its formation? And above all: how are secondary particles later born ...

Astronomy Nov 20, 2023

Physicists answer question of Supergalactic Plane's absent spiral galaxies

Astrophysicists say they have found an answer to why spiral galaxies like our own Milky Way are largely missing from a part of our local universe called the Supergalactic Plane.

Optics & Photonics Oct 25, 2023

Room-temperature continuous-wave topological Dirac-vortex microcavity lasers on silicon

With the explosive growth of data traffic, it is highly desired to develop hybrid photonic integrated circuits combining various optical components on a single chip.

Astronomy Oct 23, 2023

Researchers trace a powerful radio signal to the most distant source yet—a galaxy billions of lightyears away

Every day and night, hundreds of thousands of intense, brief flashes of radiation suddenly flicker on and then off all across the sky. These "fast radio bursts" are invisible to the naked eye, but to a radio telescope many ...

Superconductivity Sep 27, 2023

Testing particle scattering and reflection in graphene

Humanity stands on the verge of two major revolutions: the boom in 2-dimensional supermaterials like graphene with incredible properties and the introduction of quantum computers with processing power that vastly outstrips ...

Planetary Sciences Sep 27, 2023

New simulations shed light on origins of Saturn's rings and icy moons

A new series of supercomputer simulations has offered an answer to the mystery of the origins of Saturn's rings—one that involves a massive collision in the recent history of the 4.5 billion-year-old solar system.

General Physics Sep 21, 2023

A model probing the connection between entangled particles and wormholes in general relativity

Quantum entanglement is a physical process through which pairs of particles become connected and remain so even when separated by vast distances. This fascinating phenomenon has been the focus of numerous research studies, ...

General Physics Sep 15, 2023

ATLAS experiment places some of the tightest limits yet on magnetic monopoles

Magnets, those everyday objects we stick to our fridges, all share a unique characteristic: they always have both a north and a south pole. Even if you tried breaking a magnet in half, the poles would not separate—you would ...

Astronomy Aug 29, 2023

How old is the universe exactly? A new theory suggests that it's been around for twice as long as believed

Early universe observations by the James Webb Space Telescope (JWST) cannot be explained by current cosmological models. These models estimate the universe to be 13.8 billion years in age, based on the big-bang expanding ...

General Physics Aug 11, 2023

Is there new physics beyond the standard model of particle physics? Our finding will help settle the question

Despite its tremendous success in predicting the existence of new particles and forces, the standard model of particle physics, designed over 50 years ago to explain the smallest building blocks of nature, isn't the complete ...

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