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Four-wave mixing A weak optical signal (red) from a spacecraft transmitter can be amplified noise-free when it encounters two pump waves (blue and green) in a receiver on Earth. (Courtesy: Chalmers ...

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Cloudy with a chance of axions: An axion cloud around a neutron star. While some axions escape the star’s gravitational pull, many remain bound to the star. Over a long period of time, a cloud of ...

Siloton’s handheld OCT system could soon be used for home-based monitoring of retinal disease, and may one day find its way onto future space missions ...

Paliya explains why it is essential for researchers to know about prizes such as the IOP highly cited paper award ...

Nuclear puzzle: In the nucleus, neutrons can be stable, but free neutrons decay after a short period. Exactly how short is in dispute because experiments on neutrons stored in bottles and neutrons in ...

A supposedly stable belt of radiation 7000 km above the Earth’s surface may in fact be producing damaging bursts of ...

Join the audience for a live webinar at 3 p.m. GMT/10 p.m. EST on 27 November 2024, sponsored by IOP Publishing ebooks, to explore the historical journey, challenges, and achievements of women in ...