Physics

Technique doubles conversion of CO2 to plastic component

Fossil fuels have long been the precursor to plastic, but new research has detailed a technique for doubling the amount of carbon dioxide that gets converted to ethylene -- an essential component of the world's most common plastic.

From a model of fluids to the birth of a new field in computational physics

It may sound like the stuff of fairy tales, but in the 1950s two numerical models initially developed as a pet project by physicists led to the birth of an entirely new field of physics: computational statistical mechanics.

Tunable diamond string may hold key to quantum memory

Researchers have engineered diamond strings that can be tuned to quiet a qubit's environment and improve memory from tens to several hundred nanoseconds, enough time to do many operations on a quantum chip.

OPERA collaboration presents its final results on neutrino oscillations

The OPERA experiment, located at the Gran Sasso Laboratory of the Italian National Institute for Nuclear Physics (INFN), was designed to conclusively prove that muon-neutrinos can convert to tau-neutrinos, through a process called neutrino oscillation, whose discovery was awarded the 2015 Nobel Physics Prize. In a paper published today in the journal Physical Review Letters, the OPERA collaboration reports the observation of a total of ten candidate events for a muon to tau-neutrino conversion, in what are the very final results of the experiment.

Non-plasma high-speed anisotropic diamond etching with nickel in 1000°C water vapor

Development of next-generation power devices is needed for energy saving in a low carbon society. Diamond is a potentially important power device material due to its excellent physical and electronic properties. Here we have developed a non-plasma high-speed anisotropic etching process using a thermochemical reaction between nickel and diamond in high-temperature water vapor. This technology is expected to contribute to fabrication of diamond devices of excellent performance with highly reduced transmission loss and high-voltage endurance.

The price of chaos: A new model virtually pits new investors against experienced ones

Financial investing attracts a range of casual neophytes to Wall Street financiers. Variation in expertise and risk-taking behaviors among investors regularly sends markets on roller-coaster rides. Most existing economic theories cannot account for this variability, but new research in chaos theory looks to help us to understand the human factors behind investing.

Tech 'Nobel' awarded to Finnish physicist for small smart devices

Finnish materials physicist Tuomo Suntola, who developed a groundbreaking technology to reduce the size of complex devices, on Tuesday won Finland's take on the Nobel science prizes.

Physicists with green fingers estimate tree spanning rate in random networks

Networks are often described as trees with spanning branches. How the tree branches out depends on the logic behind the network's expansion, such as random expansion. However, some aspects of such randomly expanding networks are invariant; in other words, they display the same characteristics, regardless of the network's scale. As a result, the entire network has the same shape as one or more of its parts.

From a model of fluids to the birth of a new field in computational physics

It may sound like the stuff of fairy tales, but in the 1950s two numerical models initially developed as a pet project by physicists led to the birth of an entirely new field of physics: computational statistical mechanics. This story has recently appeared in a paper published in EPJ H, authored by Michel Mareschal, an Emeritus Professor of Physics at the Free University of Brussels, Belgium.

Neutrons by the numbers—New counting technique delivers unprecedented accuracy

After years of research, scientists at the National Institute of Standards and Technology (NIST) have developed and demonstrated a way to count the absolute number of neutrons in a beam that is four times more accurate than their best previous results, and 50 times more accurate than similar measurements anywhere else in the world.

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