Quantum Physics

Universal quantum protocol extracts maximum work without knowing a system's state in advance

A new study published in Nature Communications has shown that in the asymptotic limit, extracting the maximum possible work from many copies of a quantum system does not require knowing exactly what state that system is in.

Engineering

Perovskite solar cells reach 26.61% certified efficiency with cesium-doping strategy

Solar cells, devices that convert sunlight into electricity, are now widely used in many countries. While most existing solar cells are based on silicon, energy engineers have been working on other devices made of so-called ...

PFAS detected in dolphin milk may pass from mothers to calves

Researchers have found that a group of chemicals known as PFAS can be transferred from mother dolphins to their nursing calves, adding to the evidence that these persistent contaminants can be transferred from mothers to ...

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Medical Xpress

Tech Xplore

Cutting calories to slow aging—without compromising health

Restricting calorie intake in species such as mice, rhesus monkeys, and fruit flies has been shown to extend their lifespans. In some cases, these animals not only live longer, but are also free of disease. But when pushed ...

The moon might be more prone to fires

Engineers love a good practical challenge, especially when it comes to spaceflight. But there's one particular challenge facing the crewed missions of the near future that scares mission planners above almost all others—fire. ...

Revealing the hidden logic behind AI's judgments of people

In a world where artificial intelligence is quietly shaping who gets hired, who receives loans, and even how medical decisions are made, a new question is emerging: How does AI judge us? A new study by Prof. Yaniv Dover and ...

Unlocking designer roots for future cereal crops

A plant signaling gene has been identified as a promising target for breeding cereal crops to produce a steeper, narrower root system architecture, but with associated yield penalties in barley. University of Queensland Ph.D. ...

German firms trapped between US and China, study finds

Germany's largest companies are deeply entangled with rival businesses in China and the US, and unable to escape either superpower, according to new research published by the University of Sussex and King's College London. ...