Physics General News

Adjusting accelerators with help from machine learning

 Physics General News
 18 November 2024
Banks of computer screens stacked two and three high line the walls. The screens are covered with numbers and graphs that are unintelligible to an untrained eye. But they tell a story to the operators staffing the particle accelerator control room. The numbers describe how the accelerator is...

Long-lived Schrödinger's-cat state achieves Heisenberg-limited sensitivity

 Physics General News
 18 November 2024
A team led by Prof. Lu Zhengtian and Researcher Xia Tian from the University of Science and Technology of China (USTC) realized a Schrödinger-cat state with minute-scale lifetime using optically trapped cold atoms, significantly enhancing the sensitivity of quantum metrology measurements. The study...

Scientists gain new insights into how mass is distributed in hadrons

 Physics General News
 15 November 2024
Scientists can determine the mass of subatomic particles that are built from quarks by looking at the particles' energy and momentum in four-dimensional spacetime. One of the quantities that encode this information, called the trace anomaly, is linked to the fact that physical observables from...

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