In two new studies, researchers at the National Institute of Standards and Technology (NIST) have greatly improved the efficiency and power output of a series of chip-scale devices that generate laser light at different colors ...
Optics & Photonics
Mar 28, 2023
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253
It was anchovy fishermen in Peru who first noticed and named El Niño events in the tropical Pacific hundreds of years ago. Their catches would fluctuate and the largest declines were seen near Christmas when the ocean was ...
Environment
Feb 28, 2023
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15
Researchers led by Prof. Shen Yuandeng and his student Tan Song from the Yunnan Observatories of the Chinese Academy of Sciences (CAS) have discovered new form of oscillation in a single filament driven by a two-sided-loop ...
Astronomy
Feb 22, 2023
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46
Using NASA's Transiting Exoplanet Survey Satellite (TESS), Chinese astronomers have detected quasi-periodic oscillations (QPOs) in the light curve of HS 2325+8205—a long-period eclipsing dwarf nova. The discovery was detailed ...
An international team of climate scientists has identified a climate teleconnection associated with increased fire activity around the world. In their study, published in the journal Nature Communications, the group used ...
Over eighty years ago, Rabi oscillations were proposed to describe the strong coupling and population transfer in a two-level quantum system exposed to an oscillatory driving field. As compared to atoms, molecules have an ...
Optics & Photonics
Feb 3, 2023
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42
Researchers from the Institute of Atmospheric Physics (IAP) of the Chinese Academy of Sciences and their collaborators have investigated past changes in El Niño diversity and quantified the contribution of anthropogenic ...
Environment
Jan 30, 2023
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10
Neutrinos mind their own business. Each second, billions of these fundamental particles will pass through stars, planets, buildings, and human bodies and will rarely ever be stopped by them, like a subatomic subway crowd. ...
Quantum Physics
Jan 5, 2023
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193
Over the last century, sea surface temperatures in the North Atlantic have oscillated over periods of a few decades. These oscillations have not been limited to the ocean. Corresponding variations have been observed in the ...
Environment
Dec 22, 2022
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5
Very small exhaled droplets, so-called aerosol particles, play an important role in the airborne transmission of pathogens such as the coronavirus. Researchers in the field of fluid mechanics used a model to investigate how ...
General Physics
Dec 8, 2022
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8
