Physics

Neutrinos become less and less mysterious

The authors of a study published in Physical Review D have shown that coherent neutrino scattering with nuclei provides a novel way to measure the neutrino charge radii. This interaction was theoretically predicted more than 40 years ago, but the difficulty of measuring the very small nuclear recoil inhibited its experimental observation until 2017 by the COHERENT experiment.

Fermilab scientists lead quest to find elusive fourth kind of neutrino

Neutrinos, ghostly fundamental particles that are famously difficult to study, could provide scientists with clues about the evolution of the universe.

Excitons pave the way to more efficient electronics

After developing a method to control exciton flows at room temperature, scientists have discovered new properties of these quasiparticles that can lead to more energy-efficient electronic devices.

Revealing hidden spin: Unlocking new paths toward high-temperature superconductors

Researchers have discovered that electron spin is key to understanding how cuprate superconductors can conduct electricity without loss at high temperature.

A model for describing the hydrodynamics of crowds

Precise simulations of the movement and behavior of crowds can be vital to the production of digital sequences or the creation of large structures for crowd management. However, the ability to quantitatively predict the collective dynamic of a group responding to external stimulation remains a largely open issue, based primarily on models in which each individual's actions are simulated according to empirical behavioral rules. Until now, there was no experimentally tested physical model that describes the hydrodynamics of a crowd without assuming behavioral rules.

Controllable fast, tiny magnetic bits

For many modern technical applications, such as superconducting wires for magnetic resonance imaging, engineers want as much as possible to get rid of electrical resistance and its accompanying production of heat.

Next up: Ultracold simulators of super-dense stars

Physicists have created the world's first laser-cooled neutral plasma. The research opens a frontier where experimental atomic and plasma physicists can coax matter to behave in bizarre new ways.

Researchers design a more durable MEMS switch

Researchers from Binghamton University, State University of New York have developed a way to make cell phones and power lines more durable. 

Physicists uncover new competing state of matter in superconducting material

A team of experimentalists discovered a remarkably long-lived new state of matter in an iron pnictide superconductor, which reveals a laser-induced formation of collective behaviors that compete with superconductivity.

Innovative magnets for new energy-recovery accelerator

When it comes to particle accelerators, magnets are one key to success. Powerful magnetic fields keep particle beams "on track" as they're ramped up to higher energy, crashed into collisions for physics experiments, or delivered to patients to zap tumors. Innovative magnets have the potential to improve all these applications.

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