Physics

A milestone in ultrashort-pulse laser oscillators

With the demonstration of a sub-picosecond thin-disk laser oscillator delivering a record-high 350-W average output power, physicists set a new benchmark and pave the path towards even more powerful lasers.

Magnetic tuning at the nanoscale

Physicists are working to produce engineered magnetic nanostructures and to tailor material properties at the nanoscale. The scientists use a special microscope to achieve this goal. This microscope's ultrathin ion beam is capable of producing stable, periodically arranged nanomagnets in a sample material. The device can also be used to optimize the magnetic properties of carbon nanotubes.

Using sound waves to remotely target drugs to tumors

The lack of a clinically viable method to track and direct cancer drugs to tumors is a big problem for targeted therapeutics.

Sound-redirecting prototype could fool eavesdroppers

Tuning the instruments that produce some of our most indelible sound waves—guitars, pianos, vocal chords—has become commonplace, expected, easy.

New particle analysis technique paves way for better air pollution monitoring

A new technique for continuously monitoring both the size and optical properties of individual airborne particles could offer a better way to monitor air pollution.

LHCf gears up to probe birth of cosmic-ray showers

Cosmic rays are particles from outer space, typically protons, travelling at almost the speed of light. When the most energetic of these particles strike the atmosphere of our planet, they interact with atomic nuclei in the atmosphere and produce cascades of secondary particles that shower down to the Earth's surface. These extensive air showers, as they are known, are similar to the cascades of particles that are created in collisions inside particle colliders such as CERN's Large Hadron Collider (LHC).

A distinct spin on atomic transport

Physicists demonstrate simultaneous control over transport and spin properties of cold atoms, and thus establish a framework for exploring concepts in spintronics and solid-state physics.

New research synthesizes different aspects of causality in quantum field theory

In current quantum field theory, causality is typically defined by the vanishing of field commutators for spacelike separations. Two researchers at the University of Massachusetts and Universidade Federal Rural in Rio de Janeiro have recently carried out a study discussing and synthesizing some of the key aspects of causality in quantum field theory. Their paper, published in Physical Review Letters, is the result of their investigation of a theory of quantum gravity commonly referred to as "quadratic gravity."

A new type of fire, the fuel of the future?

Later this month a Texus rocket will launch from Esrange, Sweden, that will travel about 260 km upwards and fall back to Earth offering researchers six minutes of zero gravity. Their experiment? Burning metal powder to understand a new type of fire.

Machine learning enhances light-beam performance at the advanced light source

A team of researchers has successfully demonstrated how machine-learning tools can improve the stability of light beams' size for science experiments at a synchrotron light source via adjustments that largely cancel out unwanted fluctuations.

Pages

Subscribe to Mr. Loyacano RSS