Search results for electromagnetic fields

Astronomy Apr 2, 2025

Ultralight dark matter could explain early black hole formation

A black hole is a region of space where gravity is so strong that nothing, not even light, can escape. There are two main types of black hole; stellar mass and supermassive black holes, and they differ in size, formation, ...

Nanophysics Apr 1, 2025

Scientists merge two 'impossible' materials into new artificial structure

An international team led by Rutgers University-New Brunswick researchers has merged two lab-synthesized materials into a synthetic quantum structure once thought impossible to exist and produced an exotic structure expected ...

General Physics Mar 28, 2025

Physicist revisits the computational limits of life and Schrödinger's essential question in the era of quantum computing

More than 80 years ago, Erwin Schrödinger, a theoretical physicist steeped in the philosophy of Schopenhauer and the Upanishads, delivered a series of public lectures at Trinity College, Dublin, which eventually came to ...

Optics & Photonics Mar 27, 2025

Terahertz imaging reveals new views of internal cochlea structure

For the first time, researchers have shown that terahertz imaging can be used to visualize internal details of the mouse cochlea with micron-level spatial resolution. The non-invasive method could open new possibilities for ...

Astronomy Mar 27, 2025

Small star, mighty flares: ALMA shares new view of Proxima Centauri

At a distance of just over four light years, Proxima Centauri is our nearest stellar neighbor and is known to be a very active M dwarf star. Its flare activity has been well-known to astronomers using visible wavelengths ...

General Physics Mar 26, 2025

A new benchmark for quantum electrodynamics in atoms: Precision measurement of boron-like tin ion's g factor

Highly charged heavy ions form a very suitable experimental field for investigating quantum electrodynamics (QED), the best-tested theory in physics describing all electrical and magnetic interactions of light and matter. ...

Nanophysics Mar 25, 2025

Magnetic 'microflowers' enhance local magnetic fields

A flower-shaped structure only a few micrometers in size made of a nickel-iron alloy can concentrate and locally enhance magnetic fields. The size of the effect can be controlled by varying the geometry and number of "petals."

Quantum Physics Mar 25, 2025

How an unconventional type of quantum computer opens a new door to the world of elementary particles

The standard model of particle physics is our best theory of the elementary particles and forces that make up our world: particles and antiparticles, such as electrons and positrons, are described as quantum fields. They ...

Condensed Matter Mar 24, 2025

Patterned spintronic emitter enables room-temperature THz polarization control for wireless and biomedical applications

Terahertz (THz) waves are located between microwaves and infrared light in the electromagnetic spectrum. They can pass through many materials without causing damage, making them useful for security scanning, medical imaging, ...

Earth Sciences Mar 20, 2025

NASA uses advanced radar to track groundwater in California

Where California's towering Sierra Nevada surrenders to the sprawling San Joaquin Valley, a high-stakes detective story is unfolding. The culprit isn't a person but a process: the mysterious journey of snowmelt as it travels ...

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