Physics

Articles from General Physics News Phys.org

Sex, lies and physics: 'Genius' drama is Einstein tell-all

The unparalleled brilliance and puckish wit? Check. The trademark wild mop of hair? Check. The marital infidelity and free-wheeling sex?

First-ever direct observation of chiral currents in quantum Hall atomic simulation

Using an atomic quantum simulator, scientists at the University of Illinois at Urbana-Champaign have achieved the first-ever direct observation of chiral currents in the model topological insulator, the 2-D integer quantum Hall system.

Researchers develop faster biosensor platform using a magnetic field

A research team led by Professor CheolGi Kim has developed a biosensor platform using magnetic patterns resembling a spider web with detection capability 20 times faster than existing biosensors.

New laser technique improves neutron yield

(Phys.org)—A team of researchers from several institutions in China has developed a new way to produce neutrons that they claim improves on conventional methods by a factor of 100. In their paper published in the journal Physical Review Letters, the team describes the new method and the results they obtained when testing it.

Can we see a singularity, the most extreme object in the universe?

A team of scientists at the Tata Institute of Fundamental Research (TIFR), Mumbai, India, have found new ways to detect a bare or naked singularity, the most extreme object in the universe.

Physicists bring together detector and accelerator to explore 'new physics' beyond the Standard Model

To study some of the tiniest particles in the universe, an international band of over 750 physicists from 23 countries is building a massive instrument. The instrument will smash subatomic particles together and analyze the debris to look for signs of as-yet-unseen particles predicted to be fundamental to the workings of the universe.

Rechargeable 'spin battery' promising for spintronics and quantum computing

Researchers have shown how to create a rechargeable "spin battery" made out of materials called topological insulators, a step toward building new spintronic devices and quantum computers.

Milestone on way to switching on world's largest superconducting linear accelerator

The international X-ray laser European XFEL has reached one of its final major milestones on the way to scientific user operation. DESY has successfully commissioned the particle accelerator, which drives the X-ray laser along its full length.

Speed-dependent attraction governs what goes on at the heart of midge swarms

Ever wondered what makes the collective behaviour in insect swarms possible? Andy Reynolds from Rothamsted Research, UK, and colleagues at Stanford University, California, USA, modelled the effect of the attraction force, which resembles Newton's gravity force, acting towards the centre of a midge swarm to give cohesion to their group movement. In a recent study published in EPJ E, their model reveals that the gravity-like attraction towards the heart of the swarm increases with an individual's flight speed.

New method can model chemistry in extreme magnetic fields of white dwarfs

Most stars become white dwarfs when they reach the end of their stellar life cycle. Astrophysicists determine what elements are present in these collapsed stars by comparing spectra observed from space against either experimentally re-created spectra measured in laboratories on Earth or theoretical spectra generated using computer models based on quantum-chemical principles. Over time, they have found that white dwarfs not only contain elements like hydrogen and helium, but also oxygen, silicon, phosphorous, carbon and carbon-containing compounds.

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