Articles by Anna Demming
Phys.org / Are primordial magnetic field theories getting in a twist?
In cosmic voids where the density of galaxies is far lower than standard, astronomers have observed weak magnetic fields that may provide a window into the early universe. The fields 10-17-10-10 G in magnitude with large ...
Phys.org / Elementary particles part ways with their properties
"Spooky action at a distance," Einstein's summation of quantum physics, has been a criticism of quantum mechanics since the field emerged. So far, descriptions of entangled particles to explain their apparently faster-than-light ...
Phys.org / Topological mechanical metamaterials go beyond Newton's third law
A change in perspective can work wonders. This has been especially true with respect to the paradigms for explaining material properties using the concept of topology, "ideas that are currently revolutionizing condensed matter ...
Phys.org / Nylon finally takes its place as a piezoelectric textile
Nylon might seem the obvious go-to material for electronic textiles—not only is there an established textiles industry based on nylon, but it conveniently has a crystalline phase that is piezoelectric—tap it and you get a ...
Phys.org / Precision metrology closes in on dark matter
Optical clocks are so accurate that it would take an estimated 20 billion years—longer than the age of the universe—to lose or gain a second. Now, researchers in the U.S. led by Jun Ye's group at the National Institute of ...
Phys.org / Hall error revelations raise aspirations for 2-D materials
One of the first things people do when they come across a new material with potentially interesting electronic properties is measure the Hall voltage. Never has this been more true than with the explosion of new 2-D materials, ...
Phys.org / Quantum heat engine behaviour observed in a qubit
Although many of today's accepted theories of classical thermodynamics predate even the industrial revolution they helped to propel, many open questions remain around how these ideas translate to the level of single quantum ...
Phys.org / III-V semiconductor photonic integrated circuits go quantum
Quantum emitters are key for a range of technologies including LEDs, lasers and, in particular, photonic quantum communication and computation protocols. So far, scientists have turned to diamond and silicon carbide (SiC) ...
Phys.org / Liquid carbon characterized using a free electron laser
From common soot to precious diamonds, carbon is familiar in many guises, but there have been little more than glimpses of carbon in the liquid form. Researchers at the FERMI Free Electron Laser (FEL) source have now not ...
Phys.org / Real-time imaging shows how SARS-CoV-2 attacks human cells
"What we're doing here is actually visualizing binding of the spike to ACE 2 [angiotensin converting enzyme 2]," says Kirill Gorshkov a research scientist at the National Center for Advancing Translational Sciences (NCATS) ...
Phys.org / Physicists pin down the pay off between speed and entropy
"You have to work harder to get the job done faster," explains Gianmaria Falasco, a researcher at the University of Luxembourg as he sums up the results of his latest work with Massimiliano Esposito. This will come as no ...
Tech Xplore / Black silicon UV responses exceed 130% efficiency
"For the first time ever, we have direct experimental evidence that an external quantum efficiency above 100% is possible in a single photodiode without any external antireflection," says Hele Savin, associate professor of ...
Phys.org / 3-D printed batteries handle the squeeze
While flexible and stretchable electronics technologies have progressed in leaps and bounds over the past 10 years, batteries to power them have some catching up to do. Researchers in Singapore and China have now demonstrated ...
Phys.org / Experiments confirm light-squeezing 2-D exciton-polaritons can exist
Measurements of the optical response of 2-D transition-metal dichalcogenides have now pinpointed real material systems in which a hypothesized light-squeezing quasiparticle can form. The 2-D exciton-polariton, which couples ...
Phys.org / Quantum fridge works by superposing the order of events
Ever tried defrosting your dinner by popping it in one identical freezer after another? Strange as it sounds, recent studies of indefinite causal order—in which different orders of events are quantum superposed—suggest this ...
