Optics & Photonics

The interference of many atoms, and a new approach to boson sampling

In daily life, when two objects are "indistinguishable," it's due to an imperfect state of knowledge. As a street magician scrambles the cups and balls, you could, in principle, keep track of which ball is which as they are ...

Astronomy

Improving timing precision of millisecond pulsars using polarization

Pulsar timing enables the most stringent tests of fundamental physics. By monitoring the pulse times of arrival (ToAs) of an ensemble of stable millisecond pulsars (MSPs), known as a pulsar timing array (PTA), it is possible ...

New approach uses generative AI to imitate human motion

An international group of researchers has created a new approach to imitating human motion by combining central pattern generators (CPGs) and deep reinforcement learning (DRL). The method not only imitates walking and running ...

Study shows damaging impact of heat waves on vital organs

Researchers from the University of California, Irvine have found evidence of the molecular causes of the damaging impact heat stress causes on the gut, liver and brain in the elderly. These findings point to the potential ...

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Tech Xplore

Astronomers explore globular cluster NGC 2419

Using the Indian Astronomical Observatory (IAO) and ESA's Gaia satellite, astronomers have explored a galactic globular cluster known as NGC 2419. Results of the study, published April 29 on the preprint server arXiv, shed ...

Researchers may have found an Achilles heel for Hepatitis B

Tiny, dangerous, and easily transmitted hepatitis B virus (HBV) chronically affects about 296 million people and kills about 1 million every year. This stealthy virus invades the liver and remains largely asymptomatic until ...

Scientists determine disorder improves lithium-ion battery life

What determines the cycle life of batteries? And, more importantly, how can we extend it? An international research team led by TU Delft has discovered that local disorder in the oxide cathode material increases the number ...

New study delves into ozone's influence on exoplanetary climate

In the quest for life beyond our solar system, a new study delves into the atmospheric dynamics of planet Proxima Centauri b, illuminating ozone's pivotal role in shaping planetary climates. This research signifies a significant ...

Hidden citations in physics may obscure true impact

In the scientific literature, a citation acts as a mechanism to signal prior knowledge, enhance credibility, and protect against plagiarism. But it also gives credit to the individual or team who established or discovered ...

Big data helps determine what drives disease risk

Working with nearly 3,000 observations across almost 1,500 host-parasite combinations, researchers at Notre Dame University have found that biodiversity loss, chemical pollution, introduced species, and climate change, but ...

Few tenure-track jobs for engineering Ph.D.s, study finds

A study finds that most engineering Ph.D. graduates will never secure a tenure-track faculty position. Over the past 50 years, the number of full-time faculty positions in US universities has steadily declined while production ...